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Worksheets

Genetics

Total questions: 23

Worksheet time: 12mins

Name
Class
Date
1.

In incomplete dominance the F1 monohybrid ................................is 1:2:1

a)

Phenotype

b)

Genotype

c)

Phenotype and Genotype

d)

None of the above

2.

A pink snapdragon is crossed with a white snapdragon. What is the probability of getting red snapdragon

a)

1

b)

1/2

c)

1/4

d)

None

3.

Choose the odd one out

a)

MN Blood group

b)

ABO Blood group

c)

Colour of chicken feather

d)

Coat colour of short horn cattle

4.

If two Roan cows are crossed, what percentage of progeny would you expect to be roan.

a)

10%

b)

25%

c)

50%

d)

75%

5.

Which of the following scientists is not associated with the rediscovery of Mendellian laws.

a)

Correns

b)

Tschermak

c)

Beedle

d)

Hugo De bvries

6.

While self crossing purple flower n sweet pea we get

a)

Purple flower every time

b)

White flower every time

c)

White or purple

d)

A blend of white and purple

7.

The phenotypic ratio in duplicate dominant epistasis is

a)

9:3:4

b)

12:3:4

c)

15:1

d)

9:7

8.

Test cross determines

a)

Whether two traits are linked or not

b)

Genotype of F2 plant

c)

Successful breeding of two populations

d)

None of the above

9.

The genes for seven characters chosen by Mendel are located on

a)

Four chromosomes

b)

Five chromosomes

c)

Six chromosomes

d)

Seven chromosomes

10.

Lack of independent assortment of two genes is due to

a)

Linkage

b)

Crossing over

c)

Recombination

d)

None

11.

Which of the following character was not used by Mendel in his experiments

a)

Seed colour

b)

Seed shape

c)

Pod length

d)

Flower position

12.

Mendel presented his works in

a)

Natural History Society in America

b)

Natural History Society in Russia

c)

Natural History Society in Brunn

d)

Natural History Society in Germany

13.

The alternate form of a gene is called

a)

Dominant character

b)

Recessive Character

c)

Allele

d)

None of the above

14.

The number of gametes produced by a heterozygous individual is

a)

1

b)

2

c)

3

d)

Many

15.

The innate tendency of the offsprings to resemble their parents is called

a)

Inheritance

b)

Heredity

c)

Variation

d)

Resemblance

16.

A normal women whose father had colour blindness married a normal man. What is the chance of occurrence of colour blindness in progeny

a)

25%

b)

50%

c)

75%

d)

100%

17.

Which of the following is known as Drosophila of plant kingdom

a)

Neurospora

b)

Parthenium

c)

Mirabilis

d)

None of the above

18.

The individual where only one copy of the chromosomes or chromosomal segment is present are called

a)

Homozygous

b)

Heterozygous

c)

Hemizygous

d)

None of the above

19.

Incomplete dominance is observed in which of the following

a)

Pisum

b)

Hiracium

c)

Mirabilis

d)

None

20.

Production of gametes by parents , formation of zygote and F1 and F2 plants can be understood by a diagram called

a)

Net square

b)

Bullet square

c)

Punch square

d)

Punnett square

21.

The alleles of a gene showing no blending and both the characters are recovered as such in F2 generation. The statement is

a)

Law of dominance

b)

Law of Independent assortment

c)

Law of natural selection

d)

None of the above

22.

The gene for which coat colour in rabbit is the dominant one

a)

Chinchilla

b)

Albino

c)

Himalayan

d)

Agouti

23.

The type of genetic interaction where complimentary genes are involved the ratio obtained is

a)

12:3:1

b)

14:1:1

c)

9:7

d)

None of the above