24277 + Interview Questions in Biology in Class 12

1.	Question : Name the four major subdisciplines of genetics.
Answer» Solution :(a) CLASSICAL genetics (B) MOLECULAR genetics (c) POPULATION genetics (d) Quantitative genetics

Discussion

2.	Question : Name the four codons that codes valine.
Answer» SOLUTION :GUU, GUC, GUA and GUG.

Discussion

3.	Question : Namethe fossil man of Shivalik hills
Answer» AUSTRALOPITHECUS DRYOPITHECUS Homohabilis RAMAPITHECUS ANSWER :D

Discussion

4.	Question :Name the four biodiversity hotspots in India.
Answer» Solution :(a) HIMALAYAS (6) Western GHATS (c) Indo-Burma region (d) Sundaland

Discussion

5.	Question : Explain the basic concepts involved in plant tissue culture.
Answer» Solution :Basic CONCEPTS of PLANT TISSUE culture are totipotency, differentiation, dedifferentiation and REDIFFERENTIATION.

Discussion

6.	Question : Give a comparative account on the wall layers of Anther.
Answer» Solution :(a) Epidermis (B) Endothecium (C) MIDDLE LAYERS (d) Tapetum

Discussion

7.	Question : Name the following: The type of reproductive cycle in non-primate mammals
Answer» SOLUTION :OESTRUS CYCLE.

Discussion

8.	Question : Name the following: The organism in which cell division itself is a mode of reproduction
Answer» SOLUTION :PROTISTS and MONERANS

Discussion

9.	Question : Name the following: The plant that flowers only once in its life time
Answer» SOLUTION :BAMBOO SPECIES.

Discussion

10.	Question : name the following - (i)A living fossil (ii)A missing link (iii)A connecting link
Answer» ANSWER :SPHENODON, ARCHAEOPTERYX, LUNG FISH

Discussion

11.	Question : Name the following chromosomal conditions . (a) 2n + 2 + 2 (b) 2n - 1 - 1 (c) x (d) 2n (e) 2n + n + n (f) 2n + 1
Answer» Solution :(a) Double tetrasomy (B) Double MONOSOMY (c) Monoploidy (d) Diploidy (E) Polyploidy (F) TRISOMY

Discussion

12.	Question : Name the following (a) This man like primate walked in eastern Africa.(b) This primate lived in east African grassland.(c) The primate which lived in east and central Asia between 1,00,000 to 40,000 years back.
Answer» Solution :(a) Rampithecus (b) Australopithecus (C) NEANDERTHAL MAN.

Discussion

13.	Question : Name the fluid present in a freely movable joint.
Answer» ANSWER :SYNOVIAL FLUID

Discussion

14.	Question : Name the fluid from which foetal cells are obtained for chromosomal analysis.
Answer» SOLUTION :AMNIOTIC FLUID.

Discussion

15.	Question : Name the fluid from which foetal cells are obtained for chromosome analysis.
Answer» ANSWER :AMNIOTIC FLUID

Discussion

16.	Question : Name the five key tools for accomplishing the tasks of recombinant DNA technology.
Answer» Solution :Restriction ENDONUCLEASES : This enzyme is for cutting the desired DNA at desired places. Gel electrophoresis : For separating the desired DNA fragments. Ligase enzyme : This enzyme is used for creating recombinant DNA molecule. DNA delivery system : LIKE electroporation, microinjection, gene gun method. Competent host (usually BACTERIA/yeast) : VECTORS like bacteria and yeast to TAKE up recombinant DNA.

Discussion

17.	Question : Name the first transgenic cow. Which gene was introduced in this cow ?
Answer» Solution :ROSIE was the name of the first transgenic cow. GENE for human alpha lactalbumin was INTRODUCED in its gene. This milk is nutritionally rich (2.4 grams PER litrer) in human PROTEIN.

Discussion

18.	Question : Name the first organic acid produced by bacterial fermentation.
Answer» SOLUTION : LACTIC ACID

Discussion

19.	Question :Name the first genetically modified non human primate.
Answer» SOLUTION :A MONKEY NAMED ANDI

Discussion

20.	Question : Name the first fossil horse.
Answer» ANSWER :EOHIPPUS

Discussion

21.	Question : Name the first formed category of photosynthetic organisms.
Answer» SOLUTION :PHOTOAUTOTROPHS

Discussion

22.	Question : Name the first cell of male gametophyte of a lowering plant ………… .
Answer» SOLUTION :POLLENGRAIN/ MICROSPORE

Discussion

23.	Question : Name the first and second law of Mendel.
Answer» SOLUTION :The LAW of DOMINANCE , The Law of SEGREGATION.

Discussion

24.	Question : Name the finger like projections on Trophoblast that appear during implantation.
Answer» SOLUTION :CHORIONIC VILLI

Discussion

25.	Question : Name the fibromuscular band that connects the testis to the wall of scrotum.
Answer» Solution :GUBERNACULUM is the fibromuscular BAND that CONNECTS the TESTIS to the wall of scrotum.

Discussion

26.	Question : Give the technical name of female used to bring up invitro fertilized egg to maturity.
Answer» ANSWER :SURROGATE MOTHER

Discussion

27.	Question :Name the famous flagship programme of Central Government launched to achieve pollution abatement and rejuvenation of River Ganga.
Answer» SOLUTION :NAMAMI GANGE

Discussion

28.	Question : Name the family does the cereals and pulses belong to.
Answer» Solution :CEREALS BELONG to the FAMILY POACEAE. Pulses belong to the family Fabaceae.

Discussion

29.	Question : Name the factors that are responsible for initiation and termination of transcription in prokaryotes.
Answer» Solution :Sigma FACTOR is responsible for INITIATION of TRANSCRIPTION. RHO factor is responsible for termination of transcription.

Discussion

30.	Question : Name the factors for RNA polymerase enzymes which recognises the start and termination signals on DNA for transcription process in Bacteria.
Answer» <P> SOLUTION :SIGMA`(sigma)` FACTOR and Rhop (p) factor

Discussion

31.	Question : Name the extinct representative of modern man.
Answer» SOLUTION :Cro-Magnon

Discussion

32.	Question : Name the explant through which virus free plantlets can be generated using tissue culturing technique.
Answer» SOLUTION :SHOOT - TIP MERISTEM

Discussion

33.	Question :Name the event during cell divison cycle that results in the gain or loss of chromosome.
Answer» Solution : Aneuploidy- It is the everit during CELL DIVISING cycle that results in the gain or loss of chromosome and FAILURE of SEGREGATION of CHROMOSOMES

Discussion

34.	Question : Name the erectile tissue forming the glans penis .
Answer» ANSWER :CORPUS spongiosum

Discussion

35.	Question : Name the era when birds began to origin.
Answer» SOLUTION :MESOZOIC ERA.

Discussion

36.	Question : Name the epoch when mammals were at the height of evolution.
Answer» SOLUTION :MIOCENE EPOCH.

Discussion

37.	Question : Name the enzymes that are used for the isolation of DNA from bacterial and fungal cells for recombinant DNA technology.
Answer» SOLUTION :The ENZYMES used are Lysozyme (bacteria) and CHITINASE (FUNGI).

Discussion

38.	Question : Name the enzymes used as clarifier for Bottled juices.
Answer» SOLUTION :PECTINASE , PROTEASE , CELLULASE.

Discussion

39.	Question : Name the enzyme which a sperm releases to penetrate the layer of corona radiata of an ovum.
Answer» SOLUTION :HYALURONIDASE

Discussion

40.	Question : Name the enzyme which changes its characteristics with change in concentration of O_2
Answer» PEP - Carboxylase HEXOKINASE Rubis- co PYRUVIC dehydrogenase ANSWER :C

Discussion

41.	Question : Name the enzyme used to digest cell wall of (a) bacteria (b) fungi
Answer» SOLUTION :(a) LYSOZYME (B) CHITINASE

Discussion

42.	Question : Name the enzyme that helps in blood coagulation in the food of predators.
Answer» ANSWER :ENTEROKINASE

Discussion

43.	Question : Name the enzyme that digests milk.
Answer» ANSWER :RENNIN

Discussion

44.	Question : Name the enzyme that joins two strands of DNA.
Answer» ANSWER :A::D

Discussion

45.	Question : Name the enzyme that breaks DNA and RNAinto nucleotides ?
Answer» ANSWER :NUCLEASE

Discussion

46.	Question : Name the enzyme secreted by JG apparatus and write its function.
Answer» Solution :JG APPARATUS SECRETES the enzyme RENIN which controls the blood PRESSURE.

Discussion

47.	Question : Name the enzyme that breaks down arginine to make urea.
Answer» ANSWER :ARGINASE

Discussion

48.	Question : Name the enzyme responsible for delay in ripening of tomato fruits.
Answer» SOLUTION :The NAME of enzyme which is RESPONSIBLE for DELAY in ripening of tomato FRUITS is polygalacturonase.

Discussion

49.	Question : Name the enzyme responsible for delay for ripening of tomato fruit .
Answer» Solution :Polygalacturonae (PG) is the major enzyme responsible for CAUSING the delay in RIPENING of tomato fruit .

Discussion

50.	Question : Name the enzyme responsible for cleavage in the following sequence:
Answer» SOLUTION :RESTRICTION ENDONUCLEASE - EcoRJ

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Question : Name the four major subdisciplines of genetics.

Question : Name the four codons that codes valine.

Question : Namethe fossil man of Shivalik hills

Question :Name the four biodiversity hotspots in India.

Question : Explain the basic concepts involved in plant tissue culture.

Question : Give a comparative account on the wall layers of Anther.

Question : Name the following: The type of reproductive cycle in non-primate mammals

Question : Name the following: The organism in which cell division itself is a mode of reproduction

Question : Name the following: The plant that flowers only once in its life time

Question : name the following - (i)A living fossil (ii)A missing link (iii)A connecting link

Question : Name the following chromosomal conditions . (a) 2n + 2 + 2 (b) 2n - 1 - 1 (c) x (d) 2n (e) 2n + n + n (f) 2n + 1

Question : Name the following (a) This man like primate walked in eastern Africa.(b) This primate lived in east African grassland.(c) The primate which lived in east and central Asia between 1,00,000 to 40,000 years back.

Question : Name the fluid present in a freely movable joint.

Question : Name the fluid from which foetal cells are obtained for chromosomal analysis.

Question : Name the fluid from which foetal cells are obtained for chromosome analysis.

Question : Name the five key tools for accomplishing the tasks of recombinant DNA technology.

Question : Name the first transgenic cow. Which gene was introduced in this cow ?

Question : Name the first organic acid produced by bacterial fermentation.

Question :Name the first genetically modified non human primate.

Question : Name the first fossil horse.

Question : Name the first formed category of photosynthetic organisms.

Question : Name the first cell of male gametophyte of a lowering plant ………… .

Question : Name the first and second law of Mendel.

Question : Name the finger like projections on Trophoblast that appear during implantation.

Question : Name the fibromuscular band that connects the testis to the wall of scrotum.

Question : Give the technical name of female used to bring up invitro fertilized egg to maturity.

Question :Name the famous flagship programme of Central Government launched to achieve pollution abatement and rejuvenation of River Ganga.

Question : Name the family does the cereals and pulses belong to.

Question : Name the factors that are responsible for initiation and termination of transcription in prokaryotes.

Question : Name the factors for RNA polymerase enzymes which recognises the start and termination signals on DNA for transcription process in Bacteria.

Question : Name the extinct representative of modern man.

Question : Name the explant through which virus free plantlets can be generated using tissue culturing technique.

Question :Name the event during cell divison cycle that results in the gain or loss of chromosome.

Question : Name the erectile tissue forming the glans penis .

Question : Name the era when birds began to origin.

Question : Name the epoch when mammals were at the height of evolution.

Question : Name the enzymes that are used for the isolation of DNA from bacterial and fungal cells for recombinant DNA technology.

Question : Name the enzymes used as clarifier for Bottled juices.

Question : Name the enzyme which a sperm releases to penetrate the layer of corona radiata of an ovum.

Question : Name the enzyme which changes its characteristics with change in concentration of O_2

Question : Name the enzyme used to digest cell wall of (a) bacteria (b) fungi

Question : Name the enzyme that helps in blood coagulation in the food of predators.

Question : Name the enzyme that digests milk.

Question : Name the enzyme that joins two strands of DNA.

Question : Name the enzyme that breaks DNA and RNAinto nucleotides ?

Question : Name the enzyme secreted by JG apparatus and write its function.

Question : Name the enzyme that breaks down arginine to make urea.

Question : Name the enzyme responsible for delay in ripening of tomato fruits.

Question : Name the enzyme responsible for delay for ripening of tomato fruit .

Question : Name the enzyme responsible for cleavage in the following sequence: