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Chromosomes, DNA and Genes

Total questions: 7

Worksheet time: 4mins

Name
Class
Date
1.

Chromosomes can be found in

a)

cytoplasm.

b)

cell membrane.

c)

cell wall.

d)

nucleus.

2.

Chromosomes contains

a)

RNA and lipids.

b)

DNA and lipids.

c)

RNA and proteins.

d)

DNA and proteins.

3.

A gene

(1) is a fragment of DNA on the chromosome.

(2) controls a body character.

(3) is the unit of inheritance.

a)

(1) and (2) only

b)

(1) and (3) only

c)

(2) and (3) only

d)

(1), (2) and (3)

4.

A gene controls cellular reactions because all ..... are made of proteins.

a)

cells

b)

enzymes

c)

antibiotics

d)

hormones

5.

All body cells (except gametes) have

a)

one set of chromosomes.

b)

two sets of chromosomes.

c)

one chromosome.

d)

two chromosomes.

6.

Sperms have

a)

one chromosome.

b)

two chromosomes.

c)

one set of chromosomes.

d)

two sets of chromosomes.

7.

Pairs of chromosomes with similar size and shape are called

a)

homozygous chromosomes.

b)

heterozygous chromosomes.

c)

homologous chromosomes.

d)

non-homologous chromosomes.