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.

18351.

Question : Definition of Retro virus.

Answer»

Solution :Virus CONTAINING base MATERIAL as RNA, they are ribovirus TYPE of viruses.
Discussion
18352.

Question : Define intragenic interaction

Answer»

Solution :INTERACTIONS TAKE PLACE between the alleles of the same gene i.e., alleles at the same LOCUS is called intragenic or intralacus gene INTERACTION.
Discussion
18353.

Question : Definition of PAP smear .

Answer»

SOLUTION :A small mass of tissue extracted from the body parts for the examination of canner is KNOWN as PAP smear.
Discussion
18354.

Question : Define interferons.

Answer»

SOLUTION :Interferons are CYTOKINES that can INDUCE cells to resist VIRAL REPLICATION
Discussion
18355.

Question : Definition of Pathogen.

Answer»

SOLUTION :Infectious disease CAUSING agents are called PATHOGENS.
Discussion
18356.

Question : What are Interferons ?

Answer»

SOLUTION :INTERFERONS are proteinaceous, antiviral, species specific SUBSTANCES produced by mammalian cells when infected with viruses. They stimulate the cellular DNA to PRODUCE antiviral ENZYMES which inhibit viral replication and protect the cells.
Discussion
18357.

Question : Definition of Passive Immunity.

Answer»

SOLUTION :Prepared antibodies which areused to SAVE lives of people are introduced in body. This types of IMMUNITY is KNOWN as Passiveimmunity
Discussion
18358.

Question : What is infertillity ? Mention one Assisted Reproductive Technology (ART) .

Answer»

Solution :Inability of the couple to produce children inspite of unprotected sexual co-habitation. 1 Assisted REPRODUCTIVE technologies to overcome infertility are
1. IVF and ET : Invitro fertilization and Embryo transfer (Test tube babies)
2. GIFT : Gamete INTRA -fallopian transfer technique
3. ZIFT : ZYGOTE intra -fallopian transfer technique :
4. IUT:(intra UTERINE transfer)
5. ICSI: (Intra cytoplasmic sperm injection)
6. Al (Artificial insemination), IUI -Intra uterine insemination.
Detailed Answer:
Infertility It is the inability of male or female to produce children.
The reasons for this may be physical, congenital diseases, drugs, immunological or even Psychological.
Two assisted reproductive techniques are:
1. Gamete Intra Fallopian Transfer (GIFT): Transfer of an ovum from a donor into the fallopian tube of another female who cannot produce ovum, but can provide suitable environment for fertilization and development.
2. Intra Cytoplasmic Sperm Injection (ICSI): A laboratory procedure in which a single sperm (from male partner) is injected directly into an egg (from female partner). Then the fertilised egg is implanted into the woman.s uterus.
Discussion
18359.

Question : Definition of Non-infectious disease.

Answer»

SOLUTION :These DISEASE REMAINS limited to the person, in whom it has been DEVELOPED.
Discussion
18360.

Question : Define inbreeding depression . What is the danger ?

Answer»


Answer :continuous -inbreeding WITHOUT selection leads to LOSS of fertility &productivity
Discussion
18361.

Question : Definition of Innate immunity .

Answer»

Solution :Non-specific TYPE of DEFENCE ELEMENTS with which and individual is born and which is always available to protect the BODY.
Discussion
18362.

Question : Define Infertility.

Answer»

Solution :Inability to conceive or produce CHILDREN even after unprotected sexual cohabitation is called infertility. That is, the inability of a man to produce SUFFICIENT numbers or quality of sperm to impregnate a woman or inability of a woman to BECOME PREGNANT or maintain a PREGNANCY.
Discussion
18363.

Question : Definition of Infectious disease.

Answer»

Solution :These disease occurs by organisms like virus, BACTERIA, FUNGI, PROTOZOA, HELMINTHES.
Discussion
18364.

Question : Define Immunity and Susceptibility.

Answer»

Solution :The overall ability of BODY to fight against the disease causing PATHOGEN is CALLED immunity .It is also called disease resistance the LACK of immunity is KNOWN as susceptibility.
Discussion
18365.

Question : Definition of Immunity.

Answer»

SOLUTION :The ABILITY of the body to fight against the disease CAUSING agents is called IMMUNITY.
Discussion
18366.

Question : Define inbreeding.

Answer»

Solution :Inbreeding REFERS to the mating of closey RELATED ANIMALS within the same BREED for about 4-6 GENERATIONS
Discussion
18367.

Question : Write a note on lymphoid organs.

Answer»

SOLUTION :Organs where LYMPHOCYTES ORIGINATE, PROLIFERATE and get matured are known as LYMPHOID organs.
Discussion
18368.

Question : Define in-situ conservation.

Answer»

Solution :Conservation of animals in their NATURAL habitat is called in-site conservation. E.g., NATIONAL PARKS.
Discussion
18369.

Question : Definition of Haemozoin .

Answer»

Solution :TOXIC MATERIAL RELEASED by raptured RBC, which is RESPONSIBLE for high FEVER.
Discussion
18370.

Question : Define immunity and name two different types of immunity.

Answer»

Solution :It is the overall ability of the host to fight the disease-causing organisms conferred by the immune system.
(i) Innate immunity and
(II) Acquired immunity.

Detailed ANSWER:
(a) Immunity
It is the ability of the immune system of the body to fight against the dis ease-causing organisms.
It is of TWO types namely Innate inmunity and Acquired immunity.
(i) Innate Immunity
It is the non-specific defense present at the time of birth.
It provides BARRIERS to the entry of foreign agents into our body.
(ii) Acquired Immunity
It is a pathogen specific immunity.
It is not present since birth but develops during the life time of an individual.
It is characterized by memory i.e. during first encounter of a pathogen, our body produces primary.
response in low intensity. Second encounter with the same pathogen produces a secondary (anamnestic). response in high intensity.
The primary and secondary immune RESPONSES are carried out with B-lymphocytes and T-lymphocytes.
B-lymphocytes (B-cells): Produce antibodies.
T-lymphocytes : Help B-cells to produce antibodies.
Discussion
18371.

Question : Definition of Carcinogens.

Answer»

SOLUTION :Anything that CAUSES CANCER is know as CARCINOGEN.
Discussion
18372.

Question : Define hybridisation

Answer»

Solution :Hybridisation is the technique of cross BREEDING for INTRODUCING CHARACTERS of two DESIRABLE species into a single offspring by artificial pollination.
Discussion
18373.

Question : Define humidity and mention its types

Answer»

Solution :Moisture in the FORM of invisible vapor in the ATMOSPHERE is called humidity, which is GENERALLY expressed in TERMS of absolute humidity, RELATIVE humidity or specific humidity
Discussion
18374.

Question : Definition of Cell mediated immunity.

Answer»

SOLUTION :In our body, varioustypes of ANTIBODIES are formed and they are found in blood. This TYPE of immunity is known as cell MEDIATED immunity.
Discussion
18375.

Question : Definition of B-lymphocytes .

Answer»

SOLUTION :Produces ANTIBODIES in response to pathogens and RELEASE them in BLOOD.
Discussion
18376.

Question : Define hybrid.

Answer»

Solution :Generation GOT due to CROSSING of two GENETICALLY DIFFERENT parents is CALLED hybrid
Discussion
18377.

Question : Definition of Antingen.

Answer»

SOLUTION :They are substances which when enter the body STIMULATE the production of ANTIBODIES. They are ALSO KNOWN as immunogens.
Discussion
18378.

Question : What are hotspots?

Answer»

Solution :Hotspots are areas characterized with HIGH CONCENTRATION of endemic species experiencing unusual rapid RATE of habitat modification loss.
Discussion
18379.

Question : Definition ofAllergy.

Answer»

Solution :SOMETIMES IMMUNE SYSTEM showsexcessive RESPONSE to the SPECIFIC antigen. It is known as allergy.
Discussion
18380.

Question : Define honey flow period.

Answer»

Solution :TOTAL period for which the plants provide pollens and NECTAR to the HONEY bees.
Discussion
18381.

Question : Definition of Antibody .

Answer»

SOLUTION :These are class of proteins known as immunoglobulins produced in RESPONSE to ANTIGENIC STIMULATIONS.
Discussion
18382.

Question : Define homologous organs.

Answer»

SOLUTION :HOMOLOGOUS organs have common origin and have same basic structural plan but are DIFFERENT in appearance because they are modified to PERFORM different functions.
Discussion
18383.

Question : Definition of Active Immunity.

Answer»

Solution :When antigen is introduced to host body, the ANTIBODIES are FORMED. This TYPE of immunity is known as active immunity.
Discussion
18384.

Question : Define homologous chromosomes.

Answer»

SOLUTION : Chromosomes which are SIMILAR in MORPHOLOGY and genetic CONSTITUTION are called HOMOLOGOUS chromosomes.
Discussion
18385.

Question : Definition of Allergens .

Answer»

SOLUTION :The substance which show the SUDDEN respone in IMMUNE system are known as allergens.
Discussion
18386.

Question : Definition of Acquired immunity.

Answer»

Solution :It is a pathogen specific immunity. It is not PRESENT from BIRTH and DEVELOPS during an individual.s LIFETIME.
Discussion
18387.

Question : Define Homogamy with an example

Answer»

Solution :when the stamens and stigma of a flower MATURE at the same it is said to be homogamy. If favours self - pollination to occur. EXAMPLE : Mirabilis JALAPA.
Discussion
18388.

Question : Definition/explanation : Mycorrhiza

Answer»

SOLUTION :Mycorrhiza : When fungi is in SYMBIOTIC relation with plant, such a STRUCTURE is CALLED mycorrhiza
Discussion
18389.

Question : Define heterostl, through which way does this conition can be maintained for generation .

Answer»

Solution :The superiority of `F_(1)` hybrid in performance over its PARENTS is called HETEROSIS or hybrid vigour. Vigour refers to INCREASE in growth, yield , adaptability resistance to DISEASE, pest ETC.., vegetative propogation is the best suited method to maintain hybrid vigour.
Discussion
18390.

Question : Define hershey chase experiment with well labelled diagram.

Answer»

SOLUTION :
Discussion
18391.

Question : Definition/explanation :Methanogens

Answer»

SOLUTION : Methanogens: Bacteria producing large quantity of METHANE during DECOMPOSITION of ORGANIC matter.
Discussion
18392.

Question : Define heredity & variation.

Answer»

Solution :HEREDITY : Heredity is the transmission of CHARACTERS from parents to offsprings.
Variation : The organisms belonging to the same NATURAL population or species that shows a difference in the CHARACTERISTICS is called variation.
Discussion
18393.

Question : Definition/explanation : Fermenters

Answer»

SOLUTION :Fermentors : These are the LARGE vessels used for GROWING microbes on a commercial scale.
Discussion
18394.

Question : Define heliophytes and sciophytes. Name a plant from your locality that is either heliophyte or sciophyte

Answer»

Solution :Heliophytes are also called sun plants because they grow in OPEN in full sunlight. Examples: PROSOPIS, Betula, Teak, ETC.
Sciophytes are the plants that grow in moderate to low INTENSITY of light under the cover of large trees. Examples: Aegle, Nycanthes.
Discussion
18395.

Question : Definition/explanation : Biofertiliser

Answer»

SOLUTION :Biofertiliser : The ORGANISMS that enrich the NUTRIENT content of the SOIL.
Discussion
18396.

Question : Define heliophytes and sciophytes. Name a plant from your locality that is either heliophyte or sciophyte.

Answer»

Solution :•Heliophytes also called SUN-loving plants, these are those which require FULL exposure to the sun for their optimum growth.
• E.g., Mango, SUNFLOWER
• SCIOPHYTES also called shade-loving plants, are those plants that require reduced LIGHT intensity.
• E.g., Lycopodium, Abies, Taxus.
Discussion
18397.

Question : Definition/explanation : BOD

Answer»

SOLUTION :BOD : It is a measure of OXYGEN needed by AEROBIC DECOMPOSERS in the sewage polluted water, it also indicates the amount of organic matter PRESENT in water.
Discussion
18398.

Question : Define : Health

Answer»

SOLUTION :Health does not simply mean "absence of disease or physical fitness". According to World Health ORGANISATION (1948) health is DEFINED as "health is a state of complete physical, mental and social well-being and not MERELY an absence of disease".
Discussion
18399.

Question : Define 'zero population growth rate'. Draw a age pyramid for the same.

Answer»

Solution :• When birth RATE becomes EQUALS to DEATH rate then there is no GROWTH, it is called as zero population growth rate.
• It is obtained when - 
• The number of post - reproductive age GROUP individuals are less in number and both prereproductive and reproductive stages are in the same level.
• An inverted bell-shaped age pyramid is obtained.
Discussion
18400.

Question : Define haematopoiesis.

Answer»

Solution :The process of production of BLOOD cells in the BONE marrow is CALLED haematopoisis.
Discussion