24277 + Interview Questions in Biology in Class 12 Page 231 InterviewSolution

11501.	Question : Necrosis, or death of tissue particularly leaf tissue is due to the deficiency of:
Answer» N, K, S N, K, MG and Fe Mn, ZN and Mo Ca, Mg, Cu and K Answer :D

Discussion

11502.	Question : Necrosis means :
Answer» Over growth Undergrowth Death of CELLS, TISSUES of organs Yellowing Answer :C

Discussion

11503.	Question : Necrosis is the main symptom of nitrogen deficiency in plants.
Answer» ANSWER :CHLOROSIS

Discussion

11504.	Question : nearly ______ percent of all insects are phytophagous.
Answer» 0.1 0.25 0.4 0.65 Answer :B

Discussion

11505.	Question : Nebenkernis a part of:
Answer» HUMAN ovum Human sperm Foetus Graafian follicle Answer :B

Discussion

11506.	Question : Nearly ............ % of all insects are known to be phtophagous
Answer» 25% 35% 45% 10% ANSWER :A

Discussion

11507.	Question : Nearly 100 genes of this plant are similar to disease causing genes of humans
Answer» PISUM sativum Mirabilus jalapa Antirrhinum majus Arabidopsis thaliana Answer :D

Discussion

11508.	Question : Neanderthal man:
Answer» Solution :(1)The scientific name of neanderthal MAN is homo nean-derthalensis.(2)It was an advnaced prehistoric man.It was called Neanderthal man because its first fossil was cllected from Neanderthal valley in germany by fuhlrott(1856).(3)It was heavily BUILT and short and had outwardly curved thingh bones.the FACIAL features were as follows:prominent ridges,Thick skull bones,low and SLANTING forehead,deep jaw without a chin,etc.(4)Neanderthal man existed in late pleistocene epoch about 1,50,000 years ago.It was widely spread in Europe,Asiaand Northamerica.It became extinct about 25,000 years ago.(5)The cranial capacity of Neanderthal man was about1450 cc.which was roughly equal to that of modern man.(6)it showed intellectual development in constructing and using flint tools.(7)The Neanderthal men used to bury their dead bodies along with their tools and perform CEREMONIES.

Discussion

11509.	Question : Neanderthal mam differes from modern man in
Answer» RECEDING jaw protrudingjaw can MAKE good TOOLS havingstockierbody Answer :D

Discussion

11510.	Question : Neanderthal man lived in
Answer» desert DEEP FOREST cave mountains Answer :D

Discussion

11511.	Question : Neanderthal man existed …………….. years ago.
Answer» 5,00,000 75000 30000 50000 Solution :75000

Discussion

11512.	Question : "Nature provides all for the need of man but notr for his greed."Do you agree with the statement?Justify your answer.
Answer» Solution :YES. When biological SYSTEM is over-expoited by MAN for natural resources, it results in degradation and EXTINCTION of the resources, it results in degradation and extinction of the resources.

Discussion

11513.	Question : Nature prefer internal fertilization than external fertilization. Do you agree with this statements
Answer» SOLUTION :Yes,iIn NATURE the ADVANCE PLANTS and animals show internal FERTILISATION.

Discussion

11514.	Question : "Nature provides all for the need of man but notr for his greed." Distinguish between two types of Biodiversity conservation.
Answer» SOLUTION :In situ conservation (on site conservation)-The PROTECTION of biodiversity in their natural habitat through protection of ecosystem. E.g., National PARL. Ex-situ conservation-(Off site conservation)- The protection of biodiversity which includes keeping the species under direct observstion and care. e.g., Zoological PARKS.

Discussion

11515.	Question : Nature of light its role in photosynthesis.
Answer» Solution :(1)LIGHT energy shows dual nature.(2)According to wave theory.its behaves as wace during propagation while according to corpuscular theory it photons.(3)The intensity and quality of life influence the process of photosynthesis.(4)The AMOUNT of energy in a photon is called a QUANTUM.(5)The amount of energy present in a photon is inversely proporatinal to the wavelength of the light,i.e..longer the waveleghth lesser is the energy content and vice versa.(6)The visible light is only a smaal part of electromagnetic spectrum ranging from 390nm nm (Violet light) to 760 nm (red light).This portion is often reffered to as photosynthetically active radiation(PAR).(7)THEMAXIMUM absorption of visible light by photosynthetic pigments occurs in red and blue region.They and orange region show little absorption,while the green region shows negligible absorption.(8)The green light is mostly redlected and THEREFORE colur of the leaf is mostly green.(9)The highest rate of photosynthesis occurs in red and blue region of spectrum.

Discussion

11516.	Question : Nature has many varities of plants which give drugs for abuse, as there are medicinal plants which give medicines. Substantiate with two examples.
Answer» SOLUTION :Charas, Ganja, Hashish and Marijuana, ETC., are obtained from the plant- CANNABIS sativa. Opium and Morphine obtained from Papaver somniferum. Products like morphine is used in medicine as sedative and pain killer. Such products are OFTEN ABUSED.

Discussion

11517.	Question : Natural system of classification is based upon
Answer» Anatomy, ULTRASTRUCTURE EMBRYOLOGY, morphology Phylogeny Both (1) and (2) Answer :D

Discussion

11518.	Question : Natural selection that promotes adaptivity of population in heterogeneous environments that is changed from homogeneous environment
Answer» STABILIZING selection Directional selection Normalizing selection Disruptive selection Answer :D

Discussion

11519.	Question : Natural selection results in
Answer» INHERITANCE of ACQUIRED characters Survival of fittest Genetic drift Hardy-Weinberg EQUILIBRIUM ANSWER :B

Discussion

11520.	Question : Natural selection is best defined as occuring when the environment causes
Answer» DIFFERENTIAL success in reproduction differencial MORTALITY ASSORTATIVE MATING a REDUCED gene pool Answer :A

Discussion

11521.	Question : Natural selection cannot explain
Answer» The OCCURRENCE of VESTIGIAL organs Over SPECIALISATION of some organs Arrival of the fittest All these ANSWER :D

Discussion

11522.	Question : Natural reservoir of phosphorus is
Answer» rock FOSSILS sea WATER ANIMAL BONES Solution :rock

Discussion

11523.	Question :Natural selection acts on an organism's
Answer» DOMINANT allilis recessive, HOMOZYGOUS alleles phenotype combined genotype Answer :D

Discussion

11524.	Question : Natural method of contraception include the following ?
Answer» IUD Pills Condom Lactational amenorrhea Answer :D

Discussion

11525.	Question :Natural method to prevent pregnancy is described here, which option is correct for it ?(A)Mother brest-feeds the child fullyrarrpresence of menstruation cyclerarrmaximum chance of conception rarrduring months(B) Mother brest-feeds the child fully rarrabsence of menstruation cycle rarr during six months(C)Mother brest-feeds the child fully presence of menstruation cycle rarrchance of conception is less rarrduring six months(D) Mother brest-feeds feeds the child fully menstruation cycle is absent rarrmaximum chances of conception rarrduring six months
Answer» MOTHER brest-FEEDS the child fully`rarr`presence of MENSTRUATION CYCLE`rarr`maximum chance of conception `rarr`during MONTHS Mother brest-feeds the child fully `rarr`absence of menstruation cycle `rarr` during six months Mother brest-feeds the child fully presence of menstruation cycle `rarr`chance of conception is less `rarr`during six months Mother brest-feeds feeds the child fully menstruation cycle is absent `rarr`maximum chances of conception `rarr`during six months Answer :B

Discussion

11526.	Question : Natural killer cells are type of-
Answer» Monocytes Lymphocytes Neutrophils Phagocytes Answer :B

Discussion

11527.	Question : Natural interlinked food chains are called _____
Answer» SOLUTION :FOOD WEB

Discussion

11528.	Question : Natural interlinked food chains are called
Answer» SOLUTION :FOOD WEB

Discussion

11529.	Question : Natural genetic engineer is
Answer» PSEUDOMONAS putida AGROBACTERIUM TUMEFACIENS ESCHERICHIA coli Bacillus subtilis SOLUTION :Agrobacterium tumefaciens

Discussion

11530.	Question : Natural genetic engineer is:Bacillus subtillsPseudomonas sp.Escherichia coliAgrobacterium tumefaciens
Answer» BACILLUS subtills PSEUDOMONAS sp. Escherichia coli Agrobacterium tumegaciens Answer :D

Discussion

11531.	Question : Natural anticogulant in human body is secreted by :-
Answer» Lymphocytes Neutrophils Monocytes Basophils Answer :D

Discussion

11532.	Question : Natural genetic engineer is :
Answer» BACILLUS subtillis Pseudomonas spp. Escherichia coli Agrobacterium tumefaciens Answer :D

Discussion

11533.	Question : Natural antibodies are absent for the antigen
Answer» A B D All the above ANSWER :C

Discussion

11534.	Question : Natuaral reservoir of phosphorus is :
Answer» ANIMAL bones Rock Fossils Sea water Answer :B

Discussion

11535.	Question : National wild life action plan was introduced in the year 1994 - 95
Answer» ANSWER :1983-84

Discussion

11536.	Question : National Park is an area for conservation of only animals.
Answer» ANSWER :SANCTUARY

Discussion

11537.	Question : National geographic channel selected you to interview Lamarck, the famous evolutionist. Prepare some questions to be asked.
Answer» SOLUTION :Make some questions about his life HISTORY, LAMARCKISM and CRITICISM to theory.

Discussion

11538.	Question : National Forest Policy of India has recommeded (i) forest cover for the plains and (ii) for the hills.
Answer» `{:(i,ii),(33%,67%):}` `{:(i,ii),(67%,33%):}` `{:(i,ii),(50%,50%):}` `{:(i,ii),(40%,60%):}` Solution :National Forest Policy (1988) of India has recommended 33 PERCENT forest cover for the plains and 67 percent for the hills.

Discussion

11539.	Question : National EnvironmentalEngineering Research Institute (NEERI) is in .
Answer» NEW Delhi Nagpur KOLKATA Chennai Answer :B

Discussion

11540.	Question : National flower of Inadia is
Answer» LOTUS ROSA CARICA COLOCASIA . ANSWER :A

Discussion

11541.	Question : Natality refers to
Answer» NUMBER of INDIVIDUALS ENTERING a habitat Death rate Number of individuals LEAVING the habitat Birth rate Answer :D

Discussion

11542.	Question : natalityis the characteristicof population which means
Answer» a.The totalnumberof indivdualspresent per unitare at a given time b. theincrease in NUMBEROF INDIVIDUALS in a POPULATION under given envirommentalcondition c. LOSSOF individualsdue to deathin population under givenenvironmentalconditions. d.the movementof individualsinto and out of population e . eachpopulationhas threedifferentatge GROUPS. Answer :b

Discussion

11543.	Question : N,astpcust os n,asti,a pf
Answer» {,ATU[is Kangaroo Monkey Both B and C. ANSWER :D

Discussion

11544.	Question : Natality and Mortality.
Answer» SOLUTION :

Discussion

11545.	Question : Nasopharynx receives these openings
Answer» CONCHAE Choanae Columella auris Larynx Answer :B

Discussion

11546.	Question : Nasal septum gets damaged. Its recovery requires cartilage called
Answer» FIBROUS cartilage Hyaline cartilage Elastic cartilage Calcified cartilage Answer :C

Discussion

11547.	Question : Nasal cavity and oral cavity are separated by
Answer» NASAL septum diaphragm hard palate mediastinum ANSWER :C

Discussion

11548.	Question :Narcotic drug like charas, bhang and ganja are extracted from
Answer» HEMP plant poppy seeds coco plant fungus CALLED ERGOT ANSWER :A

Discussion

11549.	Question : Naming of organisms is called biodiversity.
Answer» ANSWER :NOMENCLATURE

Discussion

11550.	Question : Namet he volatile substance which was confirmed by coisins from riperied oranges.
Answer» ANSWER :ETHYLENE

Discussion

Explore topic-wise InterviewSolutions in .

Question : Necrosis, or death of tissue particularly leaf tissue is due to the deficiency of:

Question : Necrosis means :

Question : Necrosis is the main symptom of nitrogen deficiency in plants.

Question : nearly ______ percent of all insects are phytophagous.

Question : Nebenkernis a part of:

Question : Nearly ............ % of all insects are known to be phtophagous

Question : Nearly 100 genes of this plant are similar to disease causing genes of humans

Question : Neanderthal man:

Question : Neanderthal mam differes from modern man in

Question : Neanderthal man lived in

Question : Neanderthal man existed …………….. years ago.

Question : "Nature provides all for the need of man but notr for his greed."Do you agree with the statement?Justify your answer.

Question : Nature prefer internal fertilization than external fertilization. Do you agree with this statements

Question : "Nature provides all for the need of man but notr for his greed." Distinguish between two types of Biodiversity conservation.

Question : Nature of light its role in photosynthesis.

Question : Nature has many varities of plants which give drugs for abuse, as there are medicinal plants which give medicines. Substantiate with two examples.

Question : Natural system of classification is based upon

Question : Natural selection that promotes adaptivity of population in heterogeneous environments that is changed from homogeneous environment

Question : Natural selection results in

Question : Natural selection is best defined as occuring when the environment causes

Question : Natural selection cannot explain

Question : Natural reservoir of phosphorus is

Question :Natural selection acts on an organism's

Question : Natural method of contraception include the following ?

Question : Natural killer cells are type of-

Question : Natural interlinked food chains are called _____

Question : Natural interlinked food chains are called

Question : Natural genetic engineer is

Question : Natural genetic engineer is:Bacillus subtillsPseudomonas sp.Escherichia coliAgrobacterium tumefaciens

Question : Natural anticogulant in human body is secreted by :-

Question : Natural genetic engineer is :

Question : Natural antibodies are absent for the antigen

Question : Natuaral reservoir of phosphorus is :

Question : National wild life action plan was introduced in the year 1994 - 95

Question : National Park is an area for conservation of only animals.

Question : National geographic channel selected you to interview Lamarck, the famous evolutionist. Prepare some questions to be asked.

Question : National Forest Policy of India has recommeded (i) forest cover for the plains and (ii) for the hills.

Question : National EnvironmentalEngineering Research Institute (NEERI) is in .

Question : National flower of Inadia is

Question : Natality refers to

Question : natalityis the characteristicof population which means

Question : N,astpcust os n,asti,a pf

Question : Natality and Mortality.

Question : Nasopharynx receives these openings

Question : Nasal septum gets damaged. Its recovery requires cartilage called

Question : Nasal cavity and oral cavity are separated by

Question :Narcotic drug like charas, bhang and ganja are extracted from

Question : Naming of organisms is called biodiversity.

Question : Namet he volatile substance which was confirmed by coisins from riperied oranges.