24277 + Interview Questions in Biology in Class 12

1.	Question : Which is not a chelating agent in mineral nutrition :
Answer» EDTA,CITRIC Acid EDDHA,Caffic acid Siderophores,Trataric EDB,Humic acid Answer :D

Discussion

2.	Question : Which is not a characterstic of tundra ?
Answer» VAST coniferous FOREST Permafrost Large number of water fall during SUMMERS Broad RANGE of temperature SOLUTION :Large number of water fall during summers

Discussion

3.	Question : Which is not a biosphere reserves from the following ?
Answer» SUNDARBANS MANAS GREAT Nicobar Dal lake Solution :Dal lake

Discussion

4.	Question :Which is not a bio indicator of water pollution?
Answer» Blood worms STONE flies SEWAGE FUNGUS Sludge worms Solution : Blood worms, sludge worms and sewage fungus are bio-indicator of WATER POLLUTION but stone flies are not a bio-indicator of water pollution.

Discussion

5.	Question : Which is not a beneficial aspect of Agroforestry?
Answer» (a) NUTRIENT cycling is improved (b) Balance in `O_2 - CO_2`composition (c) Suitable for WET land where rainfall is maximum (d) REDUCES WATER run-off problem Solution :Suitable for wet land where rainfall is maximum

Discussion

6.	Question : Which is neither reabsorbed nor secreted by the tubular cells of nephron ?
Answer» Glucose Urea Uric acid Inulin Answer :D

Discussion

7.	Question : Whichis most recent in human evolution ?
Answer» MESOLITHIC upper PALAEOLITHIC NEOLITHIC middlepalaeolithic ANSWER :C

Discussion

8.	Question : Which is mismatched? {:(,(a),"Bowman's capsule",-"Glomerular filtration"),(,(b),"PCT",-"Absorption of "Na^(+) and K^(+)),(,(c),"DCT",-"Absorption of glucose"),(,(d),"None of these",-):}
Answer» ANSWER :C

Discussion

9.	Question : Which is mismatched?
Answer» RNA POLYMERASE I - 18S rRNA synthesis RNA Polymerase II - HnRNA synthesis RNA Polymerase III - ScRNA synthesis RNA Polymerase II - 5.8S rRNA synthesis Answer :D

Discussion

10.	Question : Which is mismatched.
Answer» Bowman's CAPSULE - Glomerular FILTRATION PCT - Absorption of `Na^+` and `K^+` DCT - Absorption of glucose None of these Answer :C

Discussion

11.	Question : Which is most important method used to correct the genetic defect
Answer» ANSWER :GENE THERAPY

Discussion

12.	Question : Which is known as the sleeping pill?
Answer» morphine BARBITURATES codeine cocaine SOLUTION :barbiturates

Discussion

13.	Question : Which is irrelevant to the first law of thermodynamics?
Answer» (A) Energy can be transmitted from one system to to Other in many forms. (B) Energy transformation RESULTS in REDUCTION of FREE energy. (C) Energy can neither be created nor be DESTROYED. (D) Energy in the universe is constant. Answer :B

Discussion

14.	Question : Which is innermost layer of a graafian follicle?
Answer» ZONA pellucida Granulosa layer Corona Allantois Answer :A

Discussion

15.	Question : Which is incorrect statement for acid soluble pool/filtrate:-
Answer» Molecular weight `lt` 1000 dalton Has monomers Has four type chemical COMPOUNDS like PROTEINS, NUCLEIC acid, POLYSACCHARIDE, and lipid It present in trichoroacetic acid ANSWER :C

Discussion

16.	Question : Which is Incorrect w.r.t. GM foods ?
Answer» It contains the protein PRODUCED by the trensgene in question. GM food contains antibiotic RESISTANCE gene itself. The enzyme produced by antibiotics resistance gene will not cause allergies. The bacteria is gut of HUMANS could take by antibiotic resistance gene. Answer :C

Discussion

17.	Question : Which is incorrect statement :-
Answer» The process of translation required transfer of genetic INFORMATION from a polymer of nucleotides to a polymer of amino acid According to Goerge Gamow codon was a doublet The chemical method developed by Har Gobind Khorana was instrumental in synthesising RNA molecules with defined combinations of bases Severo ochoa enzyme (POLYNUCLEOTIDE phosphorylase) helpful in polymerising RNA with defined sequences in a template INDEPENDENT manner Answer :B

Discussion

18.	Question : Which is incorrect gt?
Answer» WINGS of INSECTS and BATS are analogous Wings of bats and BIRDS are homologous Wings of insects and birds are analogous Wings of insects and birds are homologous Solution :N/A

Discussion

19.	Question : Which is incorrect for vestigial organ ?
Answer» Vermiform appendix Wisdom TEETH Nictitating membrane HEART SOLUTION :Heart

Discussion

20.	Question : Which is incorrect about muscle contraction:-
Answer» Length of A-band REMAIN same Length of thin FILAMENT is reduced Length of SARCOMERE is reduced Length of I-band is reduced Answer :B

Discussion

21.	Question : Which is incorrect about phycomycetes ?
Answer» Mycelium is ASEPTATE and coenocytic A zygospore is formed by fusion of gametes Asexual reproduction TAKES place by motile aplanospores and non-motile ZOOSPORES White spots SEEN on mustard leaves are due to parasitic FUNGUS Albugo Answer :B

Discussion

22.	Question : Which is incorrect about compound leaf?
Answer» LAMINA is completely BROKEN into distinct leaflets Incision of lamina reaches upto the midrib Midrib forms a common AXIS called rachis It contains bud at the AXIL of leaflets Answer :D

Discussion

23.	Question : Which is incorrect
Answer» Fertilisation OCCURS in fallopian tube Fertilisation is physico-chemical EVENT Cleavage leads to increased mass of protoplasm Cleavage produces MORULA. ANSWER :C

Discussion

24.	Question : Which is inappropriate statement ? (i) Pomfret is a marine edible fish (ii) Major carp is a fresh water fish (iii) By reproduction between the same species heterozygosity increases (iv) Isolation of protoplast is a aim of embryo culture
Answer» only i, II only III, iv only iv only i, ii, v Solution :only i, ii

Discussion

25.	Question : Which is global ecosystem ? To make its study easier it is divided into how many categories ? -
Answer» SOLUTION :Global ecosystem is BIOSPHERE and the two categories are TERRESTRIAL and AQUATIC.

Discussion

26.	Question : Which is fastest acting enzyme?
Answer» ANSWER :CARBONIC ANHYDRASE

Discussion

27.	Question : Which is essential for root hair growth ?
Answer» Zn Ca Mo S Answer :C

Discussion

28.	Question : Which is diagnosed in southern blotting
Answer» ANTIGEN ANTIBODIES RNA DNA SOLUTION :DNA

Discussion

29.	Question : Which is correctly matched?
Answer» ONION - Bulb Yeast - Zoospores Chlamydomonas - Conidia Ginger - Sucker Answer :A

Discussion

30.	Question : Which is correctly matched ?
Answer» Cocaine-Opiate narcotic Bhang-Tranquilliser Reserpine-Tranquilliser Morphine-Hallucinogen Answer :C

Discussion

31.	Question : Which is correctly labelled with respect to the given diagram?
Answer» B : LOGISTIC curve C : CARRYING capacity C : EXPONENTIAL curve A : Carrying capacity ANSWER :D

Discussion

32.	Question : Which is correctly labelled with respect to the given diagram ?
Answer» B : LOGISTIC curve C : CARRYING capacity C : EXPONENTIAL curve A : Carrying capacity Answer :D

Discussion

33.	Question : Which is correctly labelled
Answer» a-Reissner's MEMBRANE b-Scala vestibuli c-Bsilar membrane d-Tectorial membrane. ANSWER :D

Discussion

34.	Question : Which is correct sequence of egg layers from outside to inside
Answer» Rardiata, Proliferous and Pellucida Proliferous, RADIATA and Pellucids Proliferous, Yolk Sac and Radiata NONE of the above. Answer :B

Discussion

35.	Question : Which is correct sequence according to increasing molecular weight?
Answer» tRNA-DNA-rRNA tRNA-rRNA-DNA rRNA-DNA-tRNA DNA-tRNA-rRNA Answer :B

Discussion

36.	Question : Which is correct - (i) t-RNA has an anticodon loop tht has bases complementary to the code (ii) t-RNA has an amino acid acceptor end (iii) t-RNA are specific for each amino acid (iv) For initiation, there is specific t-RNA that is reffered to as initiatior t-RNA (v) For termination there is specific t-RNA tht is reffered to as terminator t-RNA
Answer» I, II I, ii, iii I, ii,iii, iv I, ii,iii, iv, v ANSWER :C

Discussion

37.	Question : Which of the following statements is correct regarding evolution of mankind?
Answer» Homo erectus was PRECEDED by Homo habilis AUSTRALOPITHECUS LIVED in Australia Neanderthal man and Vro-magnon man lived together none of the above Answer :A

Discussion

38.	Question : Which is correct - (i) t-RNA has an anticodon loop that has bases complementary to the code (ii) t-RNA has an amino acid acceptor end (iii) t-RNA are specific for each amino acid (iv) For initiation, there is specific t-RNA that is reffered to as initiator t-RNA (v) For termination there is specific t-RNA that is reffered to as terminator t-RNA
Answer» i, ii i, ii, III i, ii, iii, iv i, ii, iii, iv, v Answer :C

Discussion

39.	Question : Which is correct order in the evolutionary history of man ?
Answer» Peking man `to` habilis man `to` Neanderthal man ` to ` CRO- MAGNON man Peking man `to` HEIDELBERG man `to` Neanderthal man `to` Cro-Magnon man Peking man `to` Neanderthal man `to` Homo sapiens `to` Heidelberg man Peking man `to`Homo sapiens `to`Cro- Magnon man Answer :B

Discussion

40.	Question : Which is correct for secondary succession ?
Answer» It follows PRIMARY SUCCESSION It is SIMILAR but FASTER than primary succession It begins on their rock It occurs on DEFORESTED site Solution :It occurs on deforested site

Discussion

41.	Question : Which is correct about Viola ?
Answer» Commonly called common pansy Bears TWO types of flowers, chasmogamous and CLEISTOGAMOUS PRODUCE assured seed-set even in the absence of pollinators All of the above Solution :`` Some plants such as Viola (common pansy), Oxalis and Commelina produce two types of flowers-Chasmogamous flowers which are similar to flowers of other species with exposed anthers and stigma, and cleistogamous flowers which do not OPEN at all. `` In such flowers, the anthers and stigma lie close to each other. When anther dehisce in the flower bud, pollen grains come in contact with stigma to effect POLLINATION. `` Cleistogamous flowers are invariable autogamous as there is no chance of cross-pollen landing on the stigma. `` Cleistogamous flowers produce assured seed-set even in absence of pollinators.

Discussion

42.	Question : Which is correct bout human embryonic development
Answer» Cleavage increase in MASS of protoplasm In the SECOND division, one of the two BLASTOMERES usually divides a LITTLE sooner than the second With more cleavage divisions the resultant blastomeres become LARGER and larger. Cleavage divisions result in hollow ball of cells called morula. Answer :B

Discussion

43.	Question : Which is correct about nitrogen fixation by legumes. They fix nitrogen through
Answer» SPECIALISED BACTERIA in their through Specialised bacteria in their roots Independent of bacteria that LIVE in their roots The STATEMENT is wrong. Answer :A

Discussion

44.	Question : Which of the following statements is correct regarding menstrual cycle?
Answer» LH induces rupturing of Graafian FOLLICLE Proliferative phase is characterised by increased production of progesterone Corpus luteum secretes large AMOUNT of estrogen Both LH and FSH attain a peak level in SECRETORY phase Answer :A

Discussion

45.	Question : Which is correct about human embryonic development ?
Answer» CLEAVAGE divisions bring about CONSIDERABLE INCREASE in mass of protoplasm. In the second division, one of the two blastomeres usually divides a LITTLE sooner than the second. With more cleavage division one of the two resultant blastomeres becouse larger and larger. Cleavage division results in hollow ball of CELLS called morula Answer :B

Discussion

46.	Question : Which is correct about anthers .They are:
Answer» Haploid DIPLOID Diploid as WELL as TRIPLOID Haploid, diploid and triploid ANSWER :A

Discussion

47.	Question : Which is correct
Answer» SOLUTION :N//A

Discussion

48.	Question : Which is correct
Answer» Placentation in Primorse is basel Flower is modified shoot Tomato FRUIT is capsule Orchid SEEDS have oil rich endosperm. Answer :B

Discussion

49.	Question : Whichis correct?
Answer» NEANDERTHAL MANIS direct ancestorof humans Homo erecuts is direct ancestorof man CRO- Magnon was FOUND in Ethiopia Australopithecus is real ancestoror moderman Answer :A

Discussion

50.	Question : Which is connecting link between fish and amphibia ?
Answer» PERIPATUS BALANOGLOSSUS LUNG FISH Archeopterix Solution :Lung fish

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Question : Which is not a chelating agent in mineral nutrition :

Question : Which is not a characterstic of tundra ?

Question : Which is not a biosphere reserves from the following ?

Question :Which is not a bio indicator of water pollution?

Question : Which is not a beneficial aspect of Agroforestry?

Question : Which is neither reabsorbed nor secreted by the tubular cells of nephron ?

Question : Whichis most recent in human evolution ?

Question : Which is mismatched? {:(,(a),"Bowman's capsule",-"Glomerular filtration"),(,(b),"PCT",-"Absorption of "Na^(+) and K^(+)),(,(c),"DCT",-"Absorption of glucose"),(,(d),"None of these",-):}

Question : Which is mismatched?

Question : Which is mismatched.

Question : Which is most important method used to correct the genetic defect

Question : Which is known as the sleeping pill?

Question : Which is irrelevant to the first law of thermodynamics?

Question : Which is innermost layer of a graafian follicle?

Question : Which is incorrect statement for acid soluble pool/filtrate:-

Question : Which is Incorrect w.r.t. GM foods ?

Question : Which is incorrect statement :-

Question : Which is incorrect gt?

Question : Which is incorrect for vestigial organ ?

Question : Which is incorrect about muscle contraction:-

Question : Which is incorrect about phycomycetes ?

Question : Which is incorrect about compound leaf?

Question : Which is incorrect

Question : Which is inappropriate statement ? (i) Pomfret is a marine edible fish (ii) Major carp is a fresh water fish (iii) By reproduction between the same species heterozygosity increases (iv) Isolation of protoplast is a aim of embryo culture

Question : Which is global ecosystem ? To make its study easier it is divided into how many categories ? -

Question : Which is fastest acting enzyme?

Question : Which is essential for root hair growth ?

Question : Which is diagnosed in southern blotting

Question : Which is correctly matched?

Question : Which is correctly matched ?

Question : Which is correctly labelled with respect to the given diagram?

Question : Which is correctly labelled with respect to the given diagram ?

Question : Which is correctly labelled

Question : Which is correct sequence of egg layers from outside to inside

Question : Which is correct sequence according to increasing molecular weight?

Question : Which of the following statements is correct regarding evolution of mankind?

Question : Which is correct order in the evolutionary history of man ?

Question : Which is correct for secondary succession ?

Question : Which is correct about Viola ?

Question : Which is correct bout human embryonic development

Question : Which is correct about nitrogen fixation by legumes. They fix nitrogen through

Question : Which of the following statements is correct regarding menstrual cycle?

Question : Which is correct about human embryonic development ?

Question : Which is correct about anthers .They are:

Question : Which is correct

Question : Which is correct

Question : Whichis correct?

Question : Which is connecting link between fish and amphibia ?