In humans, curly hair is dominant (C) to straight hair (c). A woman who is heterozygote for curly hair marries to a normal man. What will be the probability of first and second child having curly hair?

1. ¼
2. ½
3. 1/8
4. 1/6

Coloured endosperm (C) is dominant to colourless endosperm (c) while smooth seeds (S) are dominant to wrinkled seed (s) and Waxy endosperm (W) is dominant to starchy endosperm (w). What is the genotype of Homozygous colourless, smooth and waxy endosperm and homozygous coloured, wrinkled and starchy endosperm?

a. ccSSWW and CCssWW

b. ccSSWW and CCssww

c. CCSSWW and CCssww

d. ccSSWW and CCSSww

Coloured endosperm (C) is dominant to colourless endosperm (c) while smooth seeds (S) are dominant to wrinkled seed (s) and Waxy endosperm (W) is dominant to starchy endosperm (w). Cross is made between pure dominant trait and pure recessive trait parents, what will be the genotype of F2 progenies that will be coloured wrinkled and waxy?

1. CCssWW
2. CCssWw and CcssWw
3. CcssWW
4. All the above options are correct.

Coloured endosperm (C) is dominant to colourless endosperm (c) while smooth

seeds (S) are dominant to wrinkled seed (s) and Waxy endosperm (W) is dominant

to starchy endosperm (w).what will be the ratio of F2 progenies that will be

coloured wrinkled and waxy? 

1. 9/64 

2. 1/64 

3. 3/64 

4. 7/64

Eye colour in humans is controlled by a single pair of gene where B i.e. brown is dominant to b i.e. blue. What will be the genotype of a brown eyed man who marries a blue eyed lady and has blue eyed child?

a. BB

b. Bb

c. BB and Bb

d. bb

if two brown eyed people marry each other and each one had one blue eyed parent. What is the proportion of eye colour in their offspring?

a. 3:1

b. 1:4

c. 1:2

d. 2:2

In dogs, dark coat colour (A) is dominant to albino (a) and short hair (L) is dominant to long hair (l). Determine the probable genotype of the parent who are dark and short and have progenies in the following ratio:

Dark and short-89

Dark and long -31

Albino and short- 29

Albino and long-11

a. AaLl

b. AALL

c. AaLL

d. AAll

If fruit weight in a plant was measured and following categories were obtained- 25g;30g;35g;40g;45g;50g;55g.Then, how many genes are involved for controlling fruit weight?

a. 2

b. 3

c. 5

d. 7

If a character is controlled by 5 alleles, what will be the number of genotype in this case?

1. 12
2. 18
3. 30
4. 15

What phenotypic ratio will be there when selfing of a trihybrid is performed in which two gene pairs are completely dominant and one gene pair is codominant?

1. 3:9:1:2:1:3
2. 27:9:3:1:3:3:1
3. 9:3:3:1:18:6:6:2:9:3:3:1
4. 18:6:6:2:1:2:1:2:1