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GENOME AND CHROMOSOMES

Total questions: 9

Worksheet time: 5mins

Name
Class
Date
1.

How many chromosomes do humans have?

a)

46

b)

48

c)

54

d)

56

2.

Genes are made up of:

a)

DNA

b)

RNA

c)

Proteins

d)

Enzymes

3.

A human being has _____ autosomes and ______ sex chromosomes

a)

22 pairs, 1 pair

b)

23, 23

c)

2, 2

d)

23, 1

4.

If a person receives an X and a Y chromosome, that person is:

a)

female

b)

male

c)

red eyed

d)

mentally challenged

5.

A person who receives an extra chromosome, could have:

a)

Heightened intelligence

b)

Down Syndrome

c)

Red eyes

d)

Polygenic traits

6.

A pair of chromosomes that consists of  XX is  a

a)

female

b)

male

c)

down syndrome

d)

offspring

7.

Which sentence is FALSE?

a)

DNA is the recipe for life..

b)

Chromosomes are made of genes

c)

DNA is made out of 4 chemicals: adenine, cytosine, thymine, guanine

d)

All organisms have 23 pairs of DNA.

8.

What determines gender in humans? 

a)

the X and Y chromosome

b)

chromosome 21

c)

codominance

d)

epistasis

9.

This was described as the blueprint or book of human life.

a)

gene

b)

DNA

c)

genome

d)

cell