The offspring produced from a marriage have only o or A blood groups. Of the genotypes given below the possible genotypes of the parents would be

1. IAIA and IAIO

2. IAIA and IOIO

3. IOIO and IOIO

4. IAIO and IOIO

View Answer

Correct Answer :

IAIO and IOIO

Explanation :
No Explanation available for this question

Ethylene is connected with

1. Aerobic respiration

2. Climacteric

3. Anaerobic

4. Fermentation

View Answer

Correct Answer :

Climacteric

Explanation :
No Explanation available for this question

A true breeding plant producing red flowers is crossed with a pure producing white flowers allele for red colour of flower is dominant. After self ling the plants of first filial generation, the proportion of plants producing white flowers in the progeny would be

1. 3/4

2. 1/4

3. 1/3

4. 1/2

View Answer

Correct Answer :

1/4

Explanation :
No Explanation available for this question

Which one of the following represents a test cross

1. Ww X WW

2. WW X Ww

3. Ww X ww

4. Ww X Ww

5. WW X WW

View Answer

Correct Answer :

WW X Ww

Explanation :
No Explanation available for this question

The inheritance of ABO blood groups in humans is an example of

1. Polygenic inheritance

2. Epistasis

3. Incomplete dominance

4. Multi[ple allelism

5. Pleiotropism

View Answer

Correct Answer :

Multi[ple allelism

Explanation :
No Explanation available for this question

When a segment of a chromosome breaks and later rejoins after 1800 rotation, it is known as

1. Reciprocal translocation

2. Inversion

3. Deletion

4. Duplication

5. Interstitial translocation

View Answer

Correct Answer :

Inversion

Explanation :
No Explanation available for this question

Pick out the correct statements Hemophilia is a sex linked recessive character Downs syndrome is due to aneuploidy Phenylketonuria is an autosomal dominant gene disorder Phenylketonuria is an autosomal recessive gene disorder Sickle cell anemia is an X-linked recessive gene disorder

1. a, b, and d are correct

2. a, c and e are correct

3. a and c are correct

4. b and e are correct

5. a, d and e correct

View Answer

Correct Answer :

a, b, and d are correct

Explanation :
No Explanation available for this question

The stress hormone that helps plant to respond drought is

1. Auxins

2. Abscisic acid

3. Cytokinin

4. Ethylene

5. Gibberellins

View Answer

Correct Answer :

Abscisic acid

Explanation :
No Explanation available for this question

In Morgan’s experiments on linkage, the percentage of white eyed , miniature winged recombinants in F2 generation is

1. 1.3

2. 62.8

3. 37.2

4. 73.2

5. 98.7

View Answer

Correct Answer :

37.2

Explanation :
No Explanation available for this question

A character which is expressed in a hybrid is called

1. Dominanant

2. Recessive

3. Epistimic

4. Codominant

View Answer

Correct Answer :

Dominanant

Explanation :
No Explanation available for this question

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