24277 + Interview Questions in Biology in Class 12 Page 113 InterviewSolution

5601.	Question : The matured embryo sac of Oenothera is
Answer» 4 cellede & 4 nucleated 8 cellede & 8 nucleated 7 cellede & 8 nucleated 7 cellede & 7 nucleated Answer :A

Discussion

5602.	Question : The mature sperms are stored in the
Answer» SEMINIFEROUS TUBULES VAS deferens Epididymis Seminal VESICLE Solution :Epididymis

Discussion

5603.	Question : The mature embryo in angiosperms is:
Answer» GLOBULAR and heart-shaped Globular and kidney-shaped Polygonal and heart-shaped None of the above Solution :N//A

Discussion

5604.	Question : The mature embryosac has how many cells?
Answer» FIVE cell One cell Eight Cells Seven cells Answer :D

Discussion

5605.	Question : The material generally used for sound proofing of rooms like a recording studio and auditorium(A) cotton(B) coir(C) wood(D) styrofoam
Answer» cotton coir wood styrofoam Solution :Styrofoam is a kind of EXPANDED polystyrene USED especially for making food containers used for sound proofing of rooms like a RECORDING studio and AUDITORIUM, etc.

Discussion

5606.	Question : The mass of loosely arranged undifferent cells developed from explants in tissue culture are called embryoid.
Answer» ANSWER :CALLUS

Discussion

5607.	Question : The map distance in a certain organism between genes A and B is 8 units, between B and C is 4 units and between C and D is 12 units. Which one of these gene pairs will show more recombination frequency? Give reason in just one single sentence in support of your answer.
Answer» Solution : CD GENE PAIR, these are widely separated having more chances to GET separated by CROSSING over.

Discussion

5608.	Question : The map distance between A and C = 30 cM, B and C = 20 cM, A and B is 50 cM, B and D = 10 cM Cand D = 30 cM. What is the arrangement of ABCD gene on chromosome
Answer» ABCD ACBD BACD CABD ANSWER :B

Discussion

5609.	Question : The management of biosphere in such a way that it may yield one greatest suitable benefit to present generation, while maintaining its potential to meet the needs of future generation is
Answer» conservation aforestation fossilization over-exploitation Answer :B

Discussion

5610.	Question : The malignant malaria is serious and fatal . It is due
Answer» <P>PLASMODIUM FALCIPARUM P. maiaria P.vivax none of these Answer :A

Discussion

5611.	Question : The male sex hormone testosterone is secreated by
Answer» VAS deferens epididymis Leydig's cell prostate gland Answer :C

Discussion

5612.	Question : The male sex hormone testosterone is secreted from .................
Answer» Sertoli cells LEYDIG CELL EPIDIDYMIS PROSTATE gland Solution :Leydig cell

Discussion

5613.	Question : The male gametes of angiosperms are….(A) uniflagellate(B) biflagellate(C) non-motile as there is no flagellated stage in the life cycle of angiosperms(D) none of these
Answer» uniflagellate biflagellate non-motile as there is no FLAGELLATED stage in the life cycle of angiosperms none of these Answer :C

Discussion

5614.	Question : The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seedling will be, respectively.
Answer» `12, 24, 12` `24, 12, 12 ` `12, 24, 24` `24, 12, 24` Solution :GAMETOPHYTIC STRUCTURE (n) of rice plant contain 12 chromosomes and sporophytic structure (2n) of rice contain 24 chromosomes. Female GAMETE (n) = 12, Zygote (2n) = 24, The cells of the SEEDLING (2n) = 24.

Discussion

5615.	Question : The male fruit fly and female fowl are heterogametic while the female fruit fly and the male fowl are homogametic. Why are they called so?
Answer» SOLUTION :CELL type of MALE fruit fly - XY FEMALE fowl - ZW The sex chromosomes are different, hence, they are called heterogametic. While female fruit fly has XX and male fowl has ZZ. The sex chromosomes are similar hence homogametic.

Discussion

5616.	Question : The male gamete of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of seedling will be(A) 12,24,12(B) 24,12,12(C) 12,24,24(D) 24,12,12
Answer» `12,24,12` `24,12,12` `12,24,24` `24,12,12` ANSWER :C

Discussion

5617.	Question : The malate-asparate shuttle is absent in
Answer» KIDNEY cells Prokaryotes Brain cells Both (2) & (3) ANSWER :D

Discussion

5618.	Question : The majority of carbon dioxide produced by our body cells in transported to the lungs:
Answer» As carbonates Attached to haemoglobin Dissolved in the blood As bicarbonates Answer :D

Discussion

5619.	Question : The majority of baculoviruses used as biological control agents are in the genus_______.
Answer» ANSWER :NUCLEOPOLYHEDROVIRUS

Discussion

5620.	Question : The majority of animals and nearly all plants
Answer» Are regulators Are conformers Hibernate during winters Migrate TEMPORARILY from the STRESSFUL HABITAT

Discussion

5621.	Question : The major structural protein of chromosome is_____
Answer» ANSWER :HISTONE

Discussion

5622.	Question : In majority of angiosperms
Answer» Have monosporic embryo sac Show POLLEN DISPERSAL at THREE called stage Have OVULE with micropyl,chalaza and funicle in straight line Show hydrophily Answer :B

Discussion

5623.	Question : The major source of noise pollution worldwide is due to :(A) office equipment(B) transport system(C) sugar, textile and paper industries(D) oil refineries and thermal power plants
Answer» office equipment transport system sugar, textile and PAPER industries oil refineries and thermal POWER PLANTS Solution :The major source of noise pollution worldwide is DUE to transport system.

Discussion

5624.	Question : The major pollution in the environment is caused by automobiles. Mention any two of its merits
Answer» Solution :CNG BURNS more efficiently than PETROL and diesel it is CHEAPER than petrol and diesel. It cannot be siphoned off by thieves and adulerated LIKE petrol and diesel.

Discussion

5625.	Question : The largest man-made ecosystem lackes all,except
Answer» HIGH diversity High productivity Complex FOOD chains Frequent CIRCULATION of nutrients Answer :B

Discussion

5626.	Question : the major role formation of new species from old speciesis plyed by :
Answer» AUTOPLOIDY allopolylpoidy both (a) and (B) correct none of these Answer :C

Discussion

5627.	Question : The largest inflorescence of the world is pollination by(A) insects(B) snails and slugs(C) water(D) air
Answer» insects snails are slugs water air Answer :B

Discussion

5628.	Question : The major role of minor elements inside living organisms is to act as
Answer» Binder of cell structure Co-factors of enzymes Building BLOCKS of IMPORTANT AMINO acids Constituent of hormones Answer :B

Discussion

5629.	Question : The majorpollutionin the environmentis causedby automobiles Expand the termCNGmentionany twoof itsmerits .
Answer» Solution :CNG -COMPRESSED natural GAS It burneffiently It is CHEAPER thandieseland PETROL

Discussion

5630.	Question :The largest gene in human is
Answer» ONCOGENE TUMOR suppresser GENE DYSTROPHIN INSULIN gene Answer :D

Discussion

5631.	Question : The major reservoir of carbon on earth is
Answer» SOLUTION :OCEAN.

Discussion

5632.	Question : The lake in which fishes will die in bulk is :
Answer» OLIGO TROPHIC lake Eutrophic lake Organotrophic lake Altrophic lake Answer :B

Discussion

5633.	Question : The major pollution in the environment is caused by automobiles. Expand the term CNG
Answer» SOLUTION :COMPRESSED NATURAL GAS

Discussion

5634.	Question : The Lady bird and Dragonflies are useful to get rid of ………(A) Housefly and Mosquitoes(B) Aphids and Mosquitoes(C) Aphids and rotifers(D) Cockroach and Locust
Answer» HOUSEFLY and Mosquitoes Aphids and Mosquitoes Aphids and rotifers Cockroach and Locust Answer :B

Discussion

5635.	Question : The major part of activated sludge is subjected to
Answer» AEROBIC digestion anaerobic digestion both a and B none of the above Answer :B

Discussion

5636.	Question : The lactic acid bacteria is ivolved in
Answer» CONVERSION of MILK into CURD conversation of curd into ghee lactic ACID fermentation both a and c Answer :D

Discussion

5637.	Question : The Lac operon "Inducer Lactose" serves as an enzyme substrate for
Answer» Transacetylase Endonuclease Permease Beta-galactosidase Answer :D

Discussion

5638.	Question : The lac operon is turned on when all lactose molecules bind to
Answer» PROMOTER SITE operator site m-RNA repressor protein Answer :D

Discussion

5639.	Question : The kind of molecule used to drive cellular respiration is
Answer» AMINO acid glucose fatty acid protein Answer :B

Discussion

5640.	Question : The major limiting factor for photosynthesis is
Answer» `O_2` LIGHT `CO_2` water Answer :C

Discussion

5641.	Question :The lac operon consists of :
Answer» Four regulatory genes only One regulatory GENE and three structural genes TWO regulatory genes and two structural genes Three regulatory genes and three structural genes Answer :B

Discussion

5642.	Question : The major form of cancer in Indian men is
Answer» LUNG cancer Mouth and THROAT cancer Stomach cancer Bone cancer Answer :B

Discussion

5643.	Question : The L and H chains of immunogobulin are joined by…….
Answer» HYDROGEN bonds Disuphide bonds Phosphodiester bonds Ionic bond Answer :B::D

Discussion

5644.	Question : The major form of cancer in Indian women is
Answer» BREAST cancer Throat cancer Throat and MOUTH cancer Uterine-cervical cancer Answer :C

Discussion

5645.	Question : The key elements which lead to much variation in the physical and chemical conditions of different habitat are enlisted below Temperature, wind, water, light, soil, humidity, UV rays
Answer» 5 6 4 3 ANSWER :C

Discussion

5646.	Question : The major factor which could affect the binding of CO_2 to Hb is
Answer» LOW TEMPERATURE `pO_2` HIGH pH High temperature ANSWER :B

Discussion

5647.	Question : The kaibib squirrels, described before, are the example of
Answer» ALLOPATRIC populations parapatric populations sympatric populations aotopatric populations Answer :A

Discussion

5648.	Question : The key compound linking glycolysis with kerbs cycle is_____.
Answer» ANSWER :ACETYL COA

Discussion

5649.	Question : The keolado National park in Rajasthan host many
Answer» batpopulation fromwarmer COUNTRIES bird POPULATION from warm COUN tries bird population from winter countries BAT population from winter countries Answer :C

Discussion

5650.	Question : The jurassic period belongs to the era
Answer» Cenozoic Mesozoic Paleozoic Proterozoic Answer :B

Discussion

Explore topic-wise InterviewSolutions in .

Question : The matured embryo sac of Oenothera is

Question : The mature sperms are stored in the

Question : The mature embryo in angiosperms is:

Question : The mature embryosac has how many cells?

Question : The material generally used for sound proofing of rooms like a recording studio and auditorium(A) cotton(B) coir(C) wood(D) styrofoam

Question : The mass of loosely arranged undifferent cells developed from explants in tissue culture are called embryoid.

Question : The map distance in a certain organism between genes A and B is 8 units, between B and C is 4 units and between C and D is 12 units. Which one of these gene pairs will show more recombination frequency? Give reason in just one single sentence in support of your answer.

Question : The map distance between A and C = 30 cM, B and C = 20 cM, A and B is 50 cM, B and D = 10 cM Cand D = 30 cM. What is the arrangement of ABCD gene on chromosome

Question : The management of biosphere in such a way that it may yield one greatest suitable benefit to present generation, while maintaining its potential to meet the needs of future generation is

Question : The malignant malaria is serious and fatal . It is due

Question : The male sex hormone testosterone is secreated by

Question : The male sex hormone testosterone is secreted from .................

Question : The male gametes of angiosperms are….(A) uniflagellate(B) biflagellate(C) non-motile as there is no flagellated stage in the life cycle of angiosperms(D) none of these

Question : The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seedling will be, respectively.

Question : The male fruit fly and female fowl are heterogametic while the female fruit fly and the male fowl are homogametic. Why are they called so?

Question : The male gamete of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of seedling will be(A) 12,24,12(B) 24,12,12(C) 12,24,24(D) 24,12,12

Question : The malate-asparate shuttle is absent in

Question : The majority of carbon dioxide produced by our body cells in transported to the lungs:

Question : The majority of baculoviruses used as biological control agents are in the genus_______.

Question : The majority of animals and nearly all plants

Question : The major structural protein of chromosome is_____

Question : In majority of angiosperms

Question : The major source of noise pollution worldwide is due to :(A) office equipment(B) transport system(C) sugar, textile and paper industries(D) oil refineries and thermal power plants

Question : The major pollution in the environment is caused by automobiles. Mention any two of its merits

Question : The largest man-made ecosystem lackes all,except

Question : the major role formation of new species from old speciesis plyed by :

Question : The largest inflorescence of the world is pollination by(A) insects(B) snails and slugs(C) water(D) air

Question : The major role of minor elements inside living organisms is to act as

Question : The majorpollutionin the environmentis causedby automobiles Expand the termCNGmentionany twoof itsmerits .

Question :The largest gene in human is

Question : The major reservoir of carbon on earth is

Question : The lake in which fishes will die in bulk is :

Question : The major pollution in the environment is caused by automobiles. Expand the term CNG

Question : The Lady bird and Dragonflies are useful to get rid of ………(A) Housefly and Mosquitoes(B) Aphids and Mosquitoes(C) Aphids and rotifers(D) Cockroach and Locust

Question : The major part of activated sludge is subjected to

Question : The lactic acid bacteria is ivolved in

Question : The Lac operon "Inducer Lactose" serves as an enzyme substrate for

Question : The lac operon is turned on when all lactose molecules bind to

Question : The kind of molecule used to drive cellular respiration is

Question : The major limiting factor for photosynthesis is

Question :The lac operon consists of :

Question : The major form of cancer in Indian men is

Question : The L and H chains of immunogobulin are joined by…….

Question : The major form of cancer in Indian women is

Question : The key elements which lead to much variation in the physical and chemical conditions of different habitat are enlisted below Temperature, wind, water, light, soil, humidity, UV rays

Question : The major factor which could affect the binding of CO_2 to Hb is

Question : The kaibib squirrels, described before, are the example of

Question : The key compound linking glycolysis with kerbs cycle is_____.

Question : The keolado National park in Rajasthan host many

Question : The jurassic period belongs to the era