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10/14 Mendelian Inheritance

Total questions: 15

Worksheet time: 9mins

Name
Class
Date
1.

Which of the following can have 8 chromosomes?

a)

gamete

b)

somatic cell

c)

neither

d)

both

2.

If a diploid cell has 4 chromosomes and a nondisjunction occurs in meiosis I, how many gametes will have one chromosome?

a)

0

b)

1

c)

2

d)

3

e)

4

3.

If a diploid cell has 6 chromosomes and a nondisjunction occurs in meiosis II, how many gametes will have three chromosomes?

a)

0

b)

1

c)

2

d)

3

e)

4

4.

A diploid cell has 20 chromosomes. How many replicated chromosomes will be present in each cell after M1?

a)

10

b)

20

c)

30

d)

40

5.

A diploid cell has 30 chromosomes. How many sister chromatids will be present in each cell after M2?

a)

15

b)

30

c)

60

d)

0

6.

A cell with three chromosomes could be a ____

a)

Somatic

b)

Gamete

c)

Neither

d)

Both

7.

Does the picture above depict an example of polyploidy or aneuploidy?

a)

Polyploidy

b)

Aneuploidy

8.

Does nondisjunction cause aneuploidy or polyploidy?

a)

Aneuploidy

b)

Polyploidy

9.

When two heterozygous parents mate what will be the genotypic ratio of their offspring?

a)

2:2

b)

1:3

c)

1:2:1

d)

1:3:1

10.

When two heterozygous parents mate, what would be the phenotypic ratio of their offspring?

a)

2:2

b)

1:3

c)

1:2:1

d)

1:3:1

11.

What is an example of a genotype of the F1 generation?

a)

Rr

b)

rr

c)

RR

d)

RR and rr

12.

How many alleles of the same trait are in a haploid cell?

a)

0

b)

1

c)

2

d)

3

13.

How many alleles of the same trait are in a triploidy cell?

a)

0

b)

1

c)

2

d)

3

14.

Where does independent assortment happen?

a)

Mitosis

b)

Meiosis I

c)

Meiosis II

d)

Interphase

15.

How many offspring will be phenotypically recessive in the F1 generation?

a)

0%

b)

25%

c)

50%

d)

100%