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Worksheets

Genetics Practice

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

Choose the inherited trait

a)

scar on the face

b)

dimples

c)

calluses (rough skin) on hands

d)

large muscles from exercising

2.

Choose the inherited trait

a)

calluses on hands

b)

ear piercings

c)

widow's peak

d)

tattoos

3.

Choose the acquired trait

a)

widow's peak

b)

cleft chin

c)

scar on hand

d)

dimples

4.

Choose the acquired trait

a)

cleft chin

b)

broken nose

c)

webbed toes

d)

dark eyes

5.

Choose the homozygous dominant genotype

a)

dd

b)

Dd

c)

DD

6.

Choose the heterozygous dominant genotype

a)

DD

b)

Dd

c)

dd

7.

Choose the homozygous recessive genotype

a)

DD

b)

Dd

c)

dd

8.

Which gentoype(s) represents a purebred animal?

a)

AA

b)

Aa

c)

aa

9.

Which gentoype(s) represents a hybrid animal?

a)

AA

b)

Aa

c)

aa

10.

How many chromosomes are in a human body cell?

a)

20

b)

40

c)

23

d)

46

11.

How many chromosomes in a human sex cell?

a)

20

b)

40

c)

23

d)

46

12.

If a frog's body cells contain 20 chromosomes, how many chromosomes with its sex cells contain?

a)

10

b)

20

c)

23

d)

46