Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

101.

What is regeneration? Give examples of organisms that reproduce by regeneration.

Answer» Thanks for your answer Prateek?✌
That is my answer ?✌
In\xa0biology,\xa0regeneration\xa0is the process of renewal, restoration, and tissue growth that makes\xa0genomes,\xa0cells,\xa0organisms, and\xa0ecosystems\xa0resilient\xa0to natural fluctuations or events that cause disturbance or damage.[1]\xa0Every\xa0species\xa0is capable of regeneration, from\xa0bacteria\xa0to humans.[2][3]\xa0Regeneration can either be complete[4]\xa0where the new tissue is the same as the lost tissue,[4]\xa0or incomplete[5]\xa0where after the necrotic tissue comes\xa0fibrosis.[5]At its most elementary level, regeneration is mediated by the molecular processes of\xa0gene regulation\xa0and involves the cellular processes of\xa0cell proliferation,\xa0morphogenesis\xa0and\xa0cell differentiation.[6][7]\xa0Regeneration in biology, however, mainly refers to the\xa0morphogenic\xa0processes that characterize the\xa0phenotypic plasticity\xa0of\xa0traits\xa0allowing multi-cellular organisms to repair and maintain the integrity of their physiological and morphological states. Above the genetic level, regeneration is fundamentally regulated by asexual cellular processes.[8]\xa0Regeneration is different from reproduction. For example,\xa0hydra\xa0perform regeneration but reproduce by the method of\xa0budding.The hydra and the\xa0planarian\xa0flatworm have long served as model organisms for their highly\xa0adaptive\xa0regenerative capabilities.[9]\xa0Once wounded, their cells become activated and restore the organs back to their pre-existing state.[10]\xa0The\xa0Caudata\xa0("urodeles";\xa0salamanders\xa0and\xa0newts), an\xa0order\xa0of tailed\xa0amphibians, is possibly the most adept\xa0vertebrate\xa0group at regeneration, given their capability of regenerating limbs, tails, jaws, eyes and a variety of internal structures.[2]\xa0The regeneration of organs is a common and widespread adaptive capability among\xa0metazoan\xa0creatures.[9]\xa0In a related context, some animals are able to reproduce\xa0asexually\xa0through\xa0fragmentation, budding, or\xa0fission.[8]\xa0A planarian parent, for example, will constrict, split in the middle, and each half generates a new end to form two\xa0clones\xa0of the original.[11]Echinoderms\xa0(such as the sea star), crayfish, many reptiles, and amphibians exhibit remarkable examples of tissue regeneration. The case of\xa0autotomy, for example, serves as a defensive function as the animal detaches a limb or tail to avoid capture. After the limb or tail has been autotomized, cells move into action and the tissues will regenerate.[12][13][14]\xa0In some cases a shed limb can itself regenerate a new individual.[15]\xa0Limited regeneration of limbs occurs in most fishes and salamanders, and tail regeneration takes place in larval frogs and toads (but not adults). The whole limb of a salamander or a triton will grow again and again after amputation. In reptiles, chelonians, crocodilians and snakes are unable to regenerate lost parts, but many (not all) kinds of lizards, geckos and iguanas possess regeneration capacity in a high degree. Usually, it involves dropping a section of their tail and regenerating it as part of a defense mechanism. While escaping a predator, if the predator catches the tail, it will disconnect
Thanks for your answer? ✌
REGENERATION\xa0: When the simple animals like Hydra ,Planaria develop a new individual from their broken older part it is as regeneration. It is carried out by specialised cells which divide and differentiate to form the complete individual. These cells multiply and from this mass of cells other parts are generated. Regeneration follows an organised sequence referred to as DEVELOPMENT.
102.

List the advantages of tissue culture.

Answer» Thanks for your answer? ✌
Following are the various advantages of tissue culture technique:\t\tThe plantlets are obtained in a very short time with a small amount of plant tissue.\t\t\tThe new plants produced are disease-free.\t\t\tThe plants can be grown throughout the year, irrespective of the season.\t\t\tA large space is not required to grow plants by tissue culture technique.\t\t\tThe production of new varieties in the market place speeds up.\t\t\tThis technique is being used for the production of ornamental plants such as dahlia, chrysanthemum, orchids, etc.\t
103.

What is the meaning of variation in biology

Answer» Thanks for your answer
Variation is the change in characters or traits of an individual which has not existed in their parents.Variations can be of many types. If mutation occurs, there is a sudden change in the number or structure of genes or chromosomes. This change lasts generation after generation. For example, in the atomic bombing of Hiroshima and Nagasaki in 1945, the structure of genes of people changed. This is lasting till now. Moreover in disasters like Radioactive leakage, mutations can occur.Variations lead to Evolution. This fact has lead to development of humans from ape.
Variation, in biology, any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or by the effect of environmental factors on the expression of the genetic potentials (phenotypic variation).... hope it would be helpful✌
104.

What is DNA commonly called?

Answer» Another name of DNA
Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique. DNA, along with the instructions it contains, is passed from adult organisms to their offspring during reproduction... hope it would be helpful✌
then?
I am not asking full form
Deoxyribonucleic acid... ✌
105.

What are the characteristics of amoeba

Answer» 1. Amoeba a unicellular organism found in stagnant water. 2. The size of amoeba is 0.25. 3. They move with the help of finger like projection called pseudopodia. 4. Cytoplasm is differentiate into two parts, outer portion is ectoplast and inner portion is called endoplast. 5. Respiration take place with the help of body surface.Hope it will helpful for you ?✌
1: Amoeba a unicellular organism found in stagnant water.2: The size of amoeba is 0.25.3:They move with the help of finger like projection called pseudopodia.4: Cytoplasm is differentiate into two parts, outer portion is ectoplast and inner portion is called endoplast.5.Amoebae are eukaryotes whose bodies most often consist of a single cell.6. The cells of amoebae, like those of other eukaryotes, possess certain characteristic features.7.Their cytoplasm and cellular contents are enclosed within a cell membrane.8.Their DNA is packaged into a central cellular compartment called the nucleus..Each amoeba contains a small mass of jellylike cytoplasm, which is differentiated into a thin outer plasma membrane, a layer of stiff, clear ectoplasm just within the plasma membrane, and a central granular endoplasm.9. The endoplasm contains food vacuoles, a granular nucleus, and a clear contractile vacuole..10.People usually become infected from warm freshwater lakes and rivers..
Thanks
1: Amoeba a unicellular organism found in stagnant water.2: The size of amoeba is 0.25.3:They move with the help of finger like projection called pseudopodia.4: Cytoplasm is differentiate into two parts, outer portion is ectoplast and inner portion is called endoplast.5: Respiration take place with the help of body surface.
106.

What are the disadvantages of fossil fuels?

Answer» my pleasure ✌
most welcome ?
Thanks for your answer? ✌
Disadvantages of fossil fuels are :1). Burning of coal and petroleum produces a lot of pollutants causing air pollution. 2).Non-renewable 3).Unsustainable 4). Contribute to global warming
107.

Which thing came first egg or hen??

Answer» Depends if you want egg surely the hen will come first.....if you want hen surely the egg will come first!!!???
Sure egg came first ?
Not sure
I think egg??
Hen
108.

Would you be able to check if water is soft by using a soap

Answer» You\'re most welcome ✌?
Thanks for your answer
Yes it is possible... cuz soap forms lather with soft water and scum with hard water... hope it would be helpful✌
109.

Define principle focus of a concave mirror.

Answer» It\'s my pleasure✌ ?
Most welcome
Thanks for your answer? ✌
Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting from the mirror. This point is known as principal focus of a concave mirror
110.

What is the chemical formula of bleaching powder?

Answer» CaOCL2,it is calcium oxychloride . It is also called chloride of lime.. i
Caocl2 it is calcium oxychloride
Caocl2
Ca(ClO)2
111.

Wat is amiba hou many tayeps of amiba

Answer» You mean amoeba
112.

Give reasonEthane is covalent compound

Answer» In ethane there is covalent bonding between carbon and hydrogen atom. In ethane carbon and hydrogen shares two electrons carbon also shares two electrons. Therefore as ethane is made up of covalent bonding between carbon and hydrogen, so ethane is a covalent compound
113.

Where present renal artery and renal vein. Write their function

Answer» Renal artery carries mineral rich, oxygenated blood from the heart to the kidneys for nutrition and cellular respiration.Renal veins carry deoxygenated blood after waste products have been removed via glomerular filtration back from the kidneys to the heart.
Nothing
114.

What is Reyleigh\'s scattering principle?

Answer» Thanks for your answer? ✌
Rayleigh scattering relates to scattering by small particles (with respect to the wavelength of the incident light) when the scattered irradiance is inversely proportional to λ4 and increases as a6 (a is the radius of a particle), and the angular distribution of the scattered light is isotropic.
115.

Reaction of metal bicarbonate with acid

Answer» Metal bicarbonate means metal hydrogencarbonate. Metal +Metal Hydrogen carbonate --> Salt+ CO2 + H2O. For example= NaHCO3(s) (Sodium Bicarbonate)(Metal BiCarbonate) + H2SO4(aq) (Sulphuric Acid)(Acid )---> Na2SO4(aq) (Sodium Sulphate)(salt) +CO2 (Gas) +H2O (water )
Metal bicarbonate means metal hydrogencarbonate. Metal +Metal Hydrogen carbonate --> Salt+ CO2 + H2O. For example= NaHCO3(s) (Sodium Bicarbonate)(Metal BiCarbonate) + H2SO4(aq) (Sulphuric Acid)(Acid )---> Na2SO4(aq) (Sodium Sulphate)(salt) +CO2 (Gas) +H2O (water )
116.

Name some coinage metals?

Answer» Gold ,silver and copper
Gold, Silver, Copper
Gold, Silver and copper
Copper, silver and gold
Plz answer me fast
117.

Mg

Answer» Magnesium
Magnesium
Magnesium
Magnesium
Magnesium
118.

What is tha specific name of pea

Answer» Pisum sativum is the biological name of pea plznt
The pea is most commonly the small spherical seed or the seed-pod of the pod fruit Pisum sativum. Each pod contains several peas, which can be green or yellow. Botanically, pea pods are fruit, since they contain seeds and develop from the ovary of a (pea) flower. The name is also used to describe other edible seeds from the Fabaceae such as the pigeon pea (Cajanus cajan), the cowpea (Vigna unguiculata), and the seeds from several species of Lathyrus.P. sativum is an annual plant, with a life cycle of one year. It is a cool-season crop grown in many parts of the world; planting can take place from winter to early summer depending on location. The average pea weighs between 0.1 and 0.36 gram. The immature peas (and in snow peas the tender pod as well) are used as a vegetable, fresh, frozen or canned; varieties of the species typically called field peas are grown to produce dry peas like the split pea shelled from a matured pod. These are the basis of pease porridge and pea soup, staples of medieval cuisine; in Europe, consuming fresh immature green peas was an innovation of early modern cuisine.
119.

Vestigial organs means appendix what is the work of appendix in animal body.

Answer» The human appendix may be considered as a vestigial organ as it has been proved that the removal of the organ after infancy does not create any harm [1-3]. But the appendix has developed to the extreme in human and strategically placed to an important site at the junction of midgut and hindgut. The term "vermiform" comes from Latin and means "worm-shaped." The appendix used to be considered a vestigial organ, but this view has changed over the past decades. Recent research suggests that the appendix may serve an important purpose. In particular, it may serve as a reservoir for beneficial gut bacteria.
120.

Anatomical evidences explain this evidence.

Answer» The study of comparative anatomy predates the modern study of evolution. Organisms with similar structures must have acquired these traits from a common ancestor. It can serve as the first line of reasoning in determining the relatedness of species. It\'s important examples are :Homologous organs - All mammals share the same pattern of forelimbs. Though they perform different functions, they are anatomically similar. This is called divergent evolution and the structures are called homologous structures (common ancestors).Analogous organs - The pair of organs is not anatomically similar, but performs the same function (e.g., the wings of butterflies and birds). This is called convergent evolution. hope it would be helpful✌
Anatomical evidences help us to study how species have evolved over a period of time. Analogous structures support the theory of evolution and explain the fact that how species build up adaptations in order to fit in an environment whereas homologous structures help us to understand common ancestry. A common example of comparative anatomy is the similar bone structures in forelimbs of cats, whales, bats, and humans.
121.

The mutation explain this concept

Answer» Acquired (or somatic) mutations occur at some time during a person\'s life and are present only in certain cells, not in every cell in the body. These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division. Harmful mutations may cause genetic disorders or cancer. A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A mutation in a single gene causes the body to produce thick, sticky mucus that clogs the lungs and blocks ducts in digestive organs.
A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses. A mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene. A mutagen is an agent of substance that can bring about a permanent alteration to the physical composition of a DNA gene such that the genetic message is changed.
122.

Another name of compounds

Answer» No this anser is rong
I hope my answer help you
Similar and opposite works it is another name of compounds
123.

What is meant by power accommodation of the eye?

Answer» The ability of eye lens to adject its focal length
Priya you can befriend me please tell me fast I wait for your answer? ?☺
Thanks priya no any one give me answer of my question budding so you give me answer I really thanks for you ?
The ability of the eye lens to adjust its focal length, so as to clearly focus rays coming from distant as well a near object on the retina, is called power accommodation of the eye.
Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image or focus on an object as its distance varies. ... Fish and amphibians vary the power by changing the distance between a rigid lens and the retina with muscles. Accommodation is the process in which the eyes see objects at different distances and maintain clear images of the objects by the convergence and divergence of light.
124.

Differentiate between spinal and cerebral reflexes.

Answer» ok thanks for your answer? ✌
A give our notic any doing work spinal to cerebral
125.

What is autonomic nervous system? What is its function?

Answer» Thanks for your answer? ✌
Autonomic nervous system is a part of peripheral nervous system which is responsible for involuntary actions i.e. it regulates all those actions or responses of our body that are not according to our will. Example - beating of heart.It has two parts:i. Sympathetic nervous systemii. Parasympathetic nervous systemThe nerve fibres of both these parts have opposing effects i.e. if one stimulates a particular response, the muscles of other system inhibits that response.
Hh
Sorry but that\'s not the answer please explain it fully
Autonomic nervous
126.

Derivation of joules law of heating

Answer» H=(i)2rti is capital and 2 is in square
H=I squer rt
127.

2 source of light having wavelength 0.7 and 0.3microwave . Which have greater energy

Answer» 2 source of light having wavelength 0.7 and 0.3micrometre. Which have greater energy full solution
0,3 microwave
128.

When a lens said to micro scope

Answer» The compound microscope has two system of lense for greater magnification 1, the ocular or eyepiece lens that one looks into 2, the object lens or the lens closed to the object if your microscope has a mirror
129.

Explain germination of seed with diagram. Please give ans urgently

Answer» The Seed Germination Process :\xa01) Imbibition: water fills the seed.2) The water activates enzymes that begin the plant\'s growth.3) The seed grows a root to access water underground.4) The seed grows shoots that grow towards the sun.5) The shoots grow leaves and begin photmorphogenesis.
130.

Explain germination of seed with diagram.

Answer» \xa0The Seed Germination Process :\xa01) Imbibition: water fills the seed.2) The water activates enzymes that begin the plant\'s growth.3) The seed grows a root to access water underground.4) The seed grows shoots that grow towards the sun.5) The shoots grow leaves and begin photmorphogenesis.\xa0The process by which a\xa0seed\xa0grows into a new plant is called\xa0germination. When the\xa0seed\xa0get all the necessary things like air, water, warmth, space and nutrients from the soil the process of\xa0germination\xa0starts. During the early stages the\xa0seeds\xa0will get food from the cotyledons.
131.

Explain the concept speciation

Answer» I hope the answer would be helpful to you?✌
Speciation is a process within evolution that leads to the formation of new, distinct species that are reproductively isolated from one another.
S
132.

Why are acidic and basic oxides called so

Answer» Metallic oxides are generally basic in nature, and when they mixed in water they forms a base.Non metallic oxides are generally acidic in nature and whey they mixed with water they form an acid .For example mgo when mixed with h20 it forms abse I.e mg(oh)2 And when so2 mixed with h20 it forms an acid ,I.e h2so3,sulphurous acid~~.
133.

What are the advantages of contraceptive methods

Answer» The categories of contraceptive methods are:\tBarrier method (Condoms)\tSurgical method\tWithdrawal method\tCalendar method\tHormonal method\tIUCD/Copper T/LoopTwo advantages of adopting preventive methods are:\tHelps in maintaining health of women.\tHelps in preventing STDs especially AIDS.\tHelps in birth control.\tParents can give more attention to children.
1. Prevent unwanted pregnancies2. Prevent the transmission of sexually transmitted diseases3. Control population rise
134.

What are the uses of lasers?

Answer» thanks a lot ?✌
\tCutting tools that employ CO2 lasers are widely used in industries. They are precise, easy-to-automate and don’t need sharpening, unlike knives.\tWe use robot-guided lasers to cut pieces of cloth to make things such as denim jeans than using our bare hands. They are faster, more accurate and improve efficiency and productivity.\tEvery time you play a CD or a DVD, a semiconductor laser beam bounces off the spinning disc to convert its printed pattern of data into numbers; a computer chip converts these numbers into movies, music, and sound.\tLasers are used in fibre optic cables and a technology known as photonics which uses photons of light to communicate.\tThe military uses laser guided weapons and missiles.
thanks for your answer? ✌
Main uses of laser is to easily examine the pinomena of light in clear way
135.

What is electromagnetic energy?

Answer» Electromagnetic energy is a form of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space.
136.

What are Amphibians

Answer» The animals which can survive both on land and water. Ex frog.
The animals which can live on both land and water
This is the type of phylum animals which are able to live in water and land.ex Crocodile,snake,lizards etc.
Amphibians are those animals which lives on both land and water as they have lungs as well as o2 diffussing technique through their skin which help them to survive in water. ex- frog, salamander etc.
Those animals found mainly In sea or ocean\'s are called as amphibians for example fish, crocodile etc.
137.

What is the difference between an AC dynamo and a DC dynamo?

Answer» Thanks for your answer? ✌
In an AC generator, the electrical current reverses direction periodically. In a DC generator, the electrical current flows only in one direction. In an AC generator, the coil through which the current flows is fixed while the magnet moves. The construction is simple and costs are less.
138.

Respiration in human beings

Answer» Respiration is the process of taking in oxygen and giving out carbon dioxide. There are two types of respiration processes in humans:\tExternal Respiration,\xa0that involves the inhalation and exhalation of gases.\tInternal Respiration,\xa0that involves the exchange of gases between blood and body cells.Respiration in humans takes place through the lungs. It is the largest organ of the human respiratory system. The air inhaled moves down the trachea into the lungs where oxygen is exchanged for carbon dioxide from the body tissues. Carbon dioxide is then exhaled out of the lungs through the mouth.
139.

What is wave theory of light . Explain it with suitable answer.

Answer» In 1678, Huygens proposed that\xa0every point that a luminous disturbance meets turns into a source of the spherical wave itself. The sum of the secondary waves, which are the result of the disturbance, determines what form the new wave will take. This theory of light is known as the ‘Huygens’ Principle’.
140.

What is the minimum resistance which can be made using five resistor, each of 1/5 ohm.

Answer» 1 ohm
When resistors are connected in parallel, the supply current is equal to the sum of the currents through each resistor. In other words, the currents in the branches of a parallel circuit add up to the supply current.Also, they have the same potential difference across them. In other words, any components in parallel have the same potential difference across them. And, the total resistance will always be lesser than the least resistance in the circuit.The total resistance is calculated as 1/RT\u200b\u200b= 1/R1\u200b+1/R2\u200b\u200b+ 1/R3\u200b\u200b.Thatis,R=RT\u200b−1.In this case, the given resistance are of 1/5 ohms each. Therefore, the minimum resistance that can be obtained from the parallel connection of these five resistors is given as follows.1/RT\u200b \u200b= 5/1\u200b+ 5/1 \u200b+ 5/1 \u200b+ 5/1 \u200b+ 5/1 \u200b=25/1\u200b.Therefore,R= 1/25.Hence, the minimum resistance which can be made using five resistors each of 1/5 ohms is 1/25 ohms.
Minimum resistance,R=1/5+1/5+1/5+1/5+1/5R=(1+1+1+1+1)/5R=5/5R=1 •°•Thus, minimum resistance,R is 1
141.

Balance the following chemical equation

Answer» Ya,write chemical equation
Write chemical equation
142.

Which element has the electronic configuration 2, 8,1

Answer» Sodium (Na) has the electronic configuration 2,8,1.
Sodium (Na) has the electric configuration 2,8,1
Sodium (Na)has the electric configuration 2,8,1 .
Na (sodium)
143.

Explain the concept of bidding

Answer» Did you mean budding... If yes then here is your answer ?Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site. The small bulb-like projection coming out from the yeast cell is called a bud. Since the reproduction is asexual, the newly created organism is a clone and excepting mutations is genetically identical to the parent organism. I hope it would be helpful to you...? ✌
144.

Please friends fast give answer please????

Answer» Hi preeti good morning have a nice day ??☺
Hii
145.

What is meant by stage of karyokinesis

Answer» Karyokinesis is the process of division of a cell\'s nucleus during the cell division processes like mitosis and meiosis. ?
Karyokinesis is defined as the division of the nucleus during the M phase of the cell cycle. It is the first step in M phase. In this process, the DNA condenses and the chromosomal material divides equally into two halves. This process occurs in four steps-peophase, metaphase, anaphase and telophase.
146.

Explain how drooping of leaves occur in ‘touch-me-not’ plant.

Answer» hi shiva... good afternoon.. you too have a nice day?✌
Hi priya good morning have a nice day ☺??
The leaves of touch-me-not plant (Mimosa pudica) folds up in response to touch. This information is traveled from cell to cell by electrical chemical means.\xa0Mimosa has pad like swellings called pulvini at the base of each leaf. The folding up of the leaves of a sensitive plant on touching is due to the sudden loss of water from the pulvini.
Good night priya have a sweet dreams
Which sentence is three times repeat priya
147.

State the laws of reflection of light ?

Answer» 1)The incident, the normal and the reflected ray lies in the same plane2)the angle of incident and the the angle of reflection are equal
The law of reflection of light is that angle of reflection and the angle of incident are equal and the reflected ray , incident ray , normal to the surface at the point incidenceall lie on the same plane
The law of reflection states that the incident ray, the reflected ray, and the normal to the surface of the mirror all lie in the same plane. The angle of reflection is equal to the angle of incidence.
148.

Name the three areas of cerebrum and mention their functions.

Answer» Thanks for your answers ?✌
cerebrum is further divided into four sections or lobes:\t\tFrontal lobe: It is associated with parts of speech, planning, reasoning, problem-solving and movements.\t\t\tParietal lobe: Help in movements, the perception of stimuli and orientation.\t\t\tOccipital lobe: It is related to visual processing.\t\t\tTemporal lobe: This region is related to perception and recognition of memory, auditory stimuli and speech.\t
The brain has three main parts: the cerebrum, cerebellum and brainstem. Cerebrum:is the largest part of the brain and is composed of right and left hemisphere. It performs higher functions like interperting touch, vision and hearing, as well as speech, reasoing emotions, learing, and fine control of movement.
149.

Arey friends answer do na ?

Answer» Hii preeti?✌
Hiii priya
You ask questions then I can give answer no
150.

What is an homologous series? With example .

Answer» ??
Ya??
It\'s my pleasure ✌?
Thanks for your answer
A homologous series is a series of compounds with the same general formula, usually varying by a single parameter such as the length of a carbon chain. Compounds within a homologous series typically have a fixed set of functional groups that gives them similar chemical and physical properties.For example, methane, ethane, propane, butane, etc. are all part of the alkane homologous series.