24277 + Interview Questions in Biology in Class 12

1.	Question : How many genotype are produced in F_(2) generation in a dihybrid cross if both genes are pleiotropic -
Answer» 3 4 9 Cannot be calculated Answer :C

Discussion

2.	Question : How many genetically different strains of rice in India ?
Answer» 5000 50000 More than 50,000 5,00,000 SOLUTION :More than 50,000

Discussion

3.	Question : How many genetically different gametes are produced by a plant have genotype TtYyRr ?
Answer» a) 2 b) 4 c) 6 d) 8 Answer :D

Discussion

4.	Question : How many genetically different strains of mango species in India ?
Answer» 1000 100 1100 10 Solution :1000

Discussion

5.	Question :How many genes are responsible for skin colour in humans? What special phenomenon of inheritance is depicted by these two traits respectively?
Answer» Solution :3 PAIRS of a gene, phenomena INVOLVED are MULTIPLE alleles and polygenic INHERITANCE.

Discussion

6.	Question :How many genes are responsible for (a) ABO system of blood group.
Answer» SOLUTION :3 ALLELES of a GENE

Discussion

7.	Question : How many gardens are documented in IABG ?
Answer» 200 600 400 800 Solution :800

Discussion

8.	Question : How many gametes contain a dominant mutation, if 1/1500 babies show the new phenotypes?
Answer» `(1)/(15000)` `(1)/(20000)` `(1)/(30000)` `(1)/(45000)` ANSWER :C

Discussion

9.	Question : How many example given below are the example of in-situ conservation? Tissue culture, pollen bank, national park, Biosphere reserve, Botanical garden
Answer» Three Two One Five Answer :B

Discussion

10.	Question : How many equational division are necessary in a cell of onion root tip to form 128 cell
Answer» 64 128 7 127 Answer :C

Discussion

11.	Question : How many eggs are released byhuman ovary in a month? How many eggs do you think would have been released if the mother gave birth to identical twins? Would your answer changer if the twins born were fracternal?
Answer» SOLUTION :Every month are OVUM is released from the OVARY of the female. Two ovum are released in IDENTICAL twins and the fertilised.

Discussion

12.	Question : How many eggs do you think were released by the ovary of a female dog which gave birth to 6 puppies?
Answer» SOLUTION :SIX EGGS

Discussion

13.	Question : How many eggs are released by a human ovary in a month? How many eggs do you think would have been released if the mother gave birth to identical twins? Would your answer change if the twins born were fraternal?
Answer» Solution :i. Normally only one ,ii. One egg,iii. If the TWINS were fraternal no DOUBT, MOTHER WOULD produce two eggs.

Discussion

14.	Question : How many eggs and sperms are required to produce fraternal twins ?
Answer» ONE EGG, one sperm One egg, TWO sperm Two EGGS, one sperm Two eggs, two sperms Answer :D

Discussion

15.	Question : How many effective codons are there for the synthesis of twenty amino acids ?
Answer» 64 32 60 61 Answer :D

Discussion

16.	Question : How many egg cell, synergid(s), antipodal cells and polar nulei are present in an embryo sac?
Answer» 1,3,2,2 1,2,3,2 1,1,2,3 1,3,3,2 Answer :B

Discussion

17.	Question : How many " down hill" movements of electrons is found in the Z-scheme ?
Answer» 4 5 2 1 Answer :C

Discussion

18.	Question : How many different types of phenotypes would be produced in F_(1)progeny in the following cross that obeys Mendel's lawof independent assortment AA BB CC x aa bb cc?
Answer» 1 64 27 8 Answer :A

Discussion

19.	Question : How many different types of gametes can be formed by Fi progeny resulting from the following cross AABBCC xx aa bb cc ?
Answer» 3 8 27 64 Answer :B

Discussion

20.	Question : How many double circulations are normally completed by the human heart in one minute
Answer» Eight Sixteen Seventy two Thirty six Answer :B

Discussion

21.	Question : How many documented varities of basmati rice are grown in india?
Answer» 17 7 10 27 Answer :D

Discussion

22.	Question : How many different types of gametes can be formed by F_1 progeny , resulting from the following cross ? AA BB CC xx aa bb cc :
Answer» 3 8 27 64 Answer :B

Discussion

23.	Question : How many different kinds of gemetes are produced by the F_(1) offspring from a cross between pure strain of plants with yellow peas and a pure strain of plants with green peas?
Answer» 1 2 3 8 Answer :B

Discussion

24.	Question : How many different kinds of gametes will be produced by a plant having the genotype AABbCC ?
Answer» THREE FOUR NINE Two Answer :D

Discussion

25.	Question : How many different types of gametes will be produced by a plant having the genotype AABbC C ?
Answer» THREE FOUR NINE TWO ANSWER :D

Discussion

26.	Question : How many dendritic cells are identified?Name them.
Answer» Solution :Four types of DENDRITIC CELLS are known .They are LANGERHANS,interstitial cells,myeloid and LYMPHOID cells.

Discussion

27.	Question : How many copies of DNA sample are produced in PCR technique after 6-cycle.
Answer» 4 32 64 16 Solution :64

Discussion

28.	Question : How many days are required for the journey of the larva of Ascaris through blood vessels and lungs ?
Answer» ANSWER :10 DAYS

Discussion

29.	Question : How many components listed below are part of cyclic ETS ? P_(700) , P_(680) , NADP reductase, Hydrogen carrier, PS I, water Splitting Complex, PS II
Answer» TWO THREE FIVE Four Answer :B

Discussion

30.	Question : How many complexes occurs in ETC?
Answer» 4 3 5 2 Answer :C

Discussion

31.	Question : How many codons are involved in termination of translation. Name them.
Answer» Solution :THREE CODONS terminate translation process. They are UAA, UAG and UGA.

Discussion

32.	Question : How many chromosomes are there in meiocytes of human beings?
Answer» SOLUTION :46 Detailed Answer: 2n=46 CHROMOSOMES are present in MEIOCYTES of human beings.

Discussion

33.	Question : How many chromosome shal be present in a diploid cell at mitotic anaphase if its egg cell has the chromosome :-
Answer» 10 (TEN) 20(TWENTY) 30(Thirty) 40(Forty) Answer :D

Discussion

34.	Question : How many characters studied by Mendel in pisum sativum
Answer» THREE FIVE Seven Nine Answer :C

Discussion

35.	Question : How many chain/sequences of DNA molecule are broken when restriction endonuclease enzyme works on palindrome ?
Answer» 2 4 6 8 Solution :2

Discussion

36.	Question : How many cervical vertebrae a man has ?
Answer» ANSWER :7

Discussion

37.	Question : How many castes are present in the colony ofhoney bees?
Answer» TWO THREE FOUR FIVE SOLUTION :three

Discussion

38.	Question : How many Calvin cycles are required to produce 5 molecules of glucose ?
Answer» 60 15 30 90 Answer :C

Discussion

39.	Question : How many bones form the skull of man ?
Answer» ANSWER :28

Discussion

40.	Question : How many bones are present in human skull ?
Answer» 32 28 12 42 Answer :2

Discussion

41.	Question : How many bones are present in human palm?
Answer» 8 CARPALS + 5 METACARPALS 5 Metacarpals + 14 Phalanges 5 Metacarpals only 8 Carpals + 5 Metacarpals + 14 Phalanges Answer :C

Discussion

42.	Question : How many bones are present in an adult vertebral column ?
Answer» ANSWER :26

Discussion

43.	Question : How many birds are present in India at the tropical latitude ?
Answer» 120 1200 112 1122 Solution :1200

Discussion

44.	Question : How many basic requirements are there for human beings?
Answer» 1 2 3 4 Solution :3

Discussion

45.	Question : How many birds found in Colombia located near the Equator ?
Answer» 1200 1400 56 1300 Solution :1400

Discussion

46.	Question : How many bees of all three castes in a good and well-developed colony of bees are there?
Answer» 400 to 500 4,000 to 5,000 4,00,000 to 5,00,000 40,000 to 50,000 SOLUTION :40,000 to 50,000

Discussion

47.	Question : How many base pairs would have to be deleted in a mutational event to eliminate a single amino acid from a protein and not change the rest of the protein?
Answer» 1 3 2 4 Answer :B

Discussion

48.	Question : How many barriers are there in Innate immunity?
Answer» TWO THREE FOUR FIVE SOLUTION :Four

Discussion

49.	Question : how many base pairs are present in B-DNA?
Answer» `12` `11` `10` `9` Answer :C

Discussion

50.	Question : How many base pairs are found in one turn of DNA?
Answer» a]11 B]10 c]9 d]12 Answer :B

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Question : How many genotype are produced in F_(2) generation in a dihybrid cross if both genes are pleiotropic -

Question : How many genetically different strains of rice in India ?

Question : How many genetically different gametes are produced by a plant have genotype TtYyRr ?

Question : How many genetically different strains of mango species in India ?

Question :How many genes are responsible for skin colour in humans? What special phenomenon of inheritance is depicted by these two traits respectively?

Question :How many genes are responsible for (a) ABO system of blood group.

Question : How many gardens are documented in IABG ?

Question : How many gametes contain a dominant mutation, if 1/1500 babies show the new phenotypes?

Question : How many example given below are the example of in-situ conservation? Tissue culture, pollen bank, national park, Biosphere reserve, Botanical garden

Question : How many equational division are necessary in a cell of onion root tip to form 128 cell

Question : How many eggs are released byhuman ovary in a month? How many eggs do you think would have been released if the mother gave birth to identical twins? Would your answer changer if the twins born were fracternal?

Question : How many eggs do you think were released by the ovary of a female dog which gave birth to 6 puppies?

Question : How many eggs are released by a human ovary in a month? How many eggs do you think would have been released if the mother gave birth to identical twins? Would your answer change if the twins born were fraternal?

Question : How many eggs and sperms are required to produce fraternal twins ?

Question : How many effective codons are there for the synthesis of twenty amino acids ?

Question : How many egg cell, synergid(s), antipodal cells and polar nulei are present in an embryo sac?

Question : How many " down hill" movements of electrons is found in the Z-scheme ?

Question : How many different types of phenotypes would be produced in F_(1)progeny in the following cross that obeys Mendel's lawof independent assortment AA BB CC x aa bb cc?

Question : How many different types of gametes can be formed by Fi progeny resulting from the following cross AABBCC xx aa bb cc ?

Question : How many double circulations are normally completed by the human heart in one minute

Question : How many documented varities of basmati rice are grown in india?

Question : How many different types of gametes can be formed by F_1 progeny , resulting from the following cross ? AA BB CC xx aa bb cc :

Question : How many different kinds of gemetes are produced by the F_(1) offspring from a cross between pure strain of plants with yellow peas and a pure strain of plants with green peas?

Question : How many different kinds of gametes will be produced by a plant having the genotype AABbCC ?

Question : How many different types of gametes will be produced by a plant having the genotype AABbC C ?

Question : How many dendritic cells are identified?Name them.

Question : How many copies of DNA sample are produced in PCR technique after 6-cycle.

Question : How many days are required for the journey of the larva of Ascaris through blood vessels and lungs ?

Question : How many components listed below are part of cyclic ETS ? P_(700) , P_(680) , NADP reductase, Hydrogen carrier, PS I, water Splitting Complex, PS II

Question : How many complexes occurs in ETC?

Question : How many codons are involved in termination of translation. Name them.

Question : How many chromosomes are there in meiocytes of human beings?

Question : How many chromosome shal be present in a diploid cell at mitotic anaphase if its egg cell has the chromosome :-

Question : How many characters studied by Mendel in pisum sativum

Question : How many chain/sequences of DNA molecule are broken when restriction endonuclease enzyme works on palindrome ?

Question : How many cervical vertebrae a man has ?

Question : How many castes are present in the colony ofhoney bees?

Question : How many Calvin cycles are required to produce 5 molecules of glucose ?

Question : How many bones form the skull of man ?

Question : How many bones are present in human skull ?

Question : How many bones are present in human palm?

Question : How many bones are present in an adult vertebral column ?

Question : How many birds are present in India at the tropical latitude ?

Question : How many basic requirements are there for human beings?

Question : How many birds found in Colombia located near the Equator ?

Question : How many bees of all three castes in a good and well-developed colony of bees are there?

Question : How many base pairs would have to be deleted in a mutational event to eliminate a single amino acid from a protein and not change the rest of the protein?

Question : How many barriers are there in Innate immunity?

Question : how many base pairs are present in B-DNA?

Question : How many base pairs are found in one turn of DNA?