The term gene refers to

1.  Sequence of amino acid

2.  A linkage group

3.  A part of tRNA

4.  A portion of DNA

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4
Correct Answer :

A portion of DNA


Explanation :
No Explanation available for this question

Epistatic was first studied by

1.  Morgan

2.  Bateson

3.  Johannsen

4.  Punnet

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4
Correct Answer :

Bateson


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Some people experience PTC paper on tongue as bitter,other as tasteless.This character is hereditary in nature.Suppose T stands for dominant gene and t stands for recessive gene.The genetic make up of a person who cannot taste is

1.  TT

2.  Tt

3.  tt

4.  None of the above

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4
Correct Answer :

tt


Explanation :
No Explanation available for this question

In summer squash,the fruit colour can be white,yellow and green.The appearance of white colour is due to a dominant gene W.The latter is

1.  Inhibitor gene

2.  Complementary genes

3.  Epistatic gene

4.  Supplementary gene

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4
Correct Answer :

Epistatic gene


Explanation :
No Explanation available for this question

Human skin colour and blood groups are controlled by

1.  1 gene,1 allele respectively

2.  2 genes,2 alleles

3.  3 genes,3 alleles

4.  None of the above

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4
Correct Answer :

3 genes,3 alleles


Explanation :
No Explanation available for this question

From the pedigree of a family given below,it is clear that trait is inherited as dominant autosomal trait.What will be the genotype of mother and father

1.  Mother is aa and father is Aa

2.  Father is AA and mother is aa

3.  Father is Aa and mother is Aa

4.  None of the above

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4
Correct Answer :

Mother is aa and father is Aa


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No Explanation available for this question

The lack of pigmentation is called albinism.It is due to a recessive allele 'a'.Two normal parents have albino child.What will be the probability of the next child to be albino

1.  1/4

2.  1/2

3.  1/16

4.  0

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4
Correct Answer :

1/4


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In summer squash,a cross between two pure spherical,fruit types may yield a progeny having disc-shaped fruits due to

1.  Duplicate genes

2.  Additive genes

3.  Pleiotrophic genes

4.  Quantitative genes

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4
Correct Answer :

Additive genes


Explanation :
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Genetics deals with

1.  Heredity and variation

2.  Mutation

3.  Mendel's laws

4.  Crossing-over

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4
Correct Answer :

Heredity and variation


Explanation :
No Explanation available for this question

In F2 generation the no.of yellow seed and green seeds conunted by Mendel were

1.  300:10

2.  30:10

3.  6002:2001

4.  3:1

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4
Correct Answer :

6002:2001


Explanation :
No Explanation available for this question
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