KS3 Chromosomes and DNA

DNA is short for

• Ribonucleic acid

• Deoxyribonucleic acid

• Nucleic acid

How many pairs of chromosomes do human cells contain?

• 23

• 46

• 16

• 32

Where is DNA found in a human cell?

• ribosome

• nucleus

• cell membrane

• cytoplasm

What is a short segment of a DNA strand that codes for our characteristics?

• chromosome

• DNA

• RNA

• gene

What is a long coiled strand of DNA and proteins?

• gene

• RNA

• chromosome

• genome

Most same genes are located in the same place on pairs of chromosomes.

• True

• False

We inherit our genes from ...

• our nucleus.

• our parents.

• from the food we eat.

DNA is a molecule made up of a combination of how many DNA bases?

• 1

• 2

• 3

• 4

DNA has a special structure called a

• single helix

• double helix

• triple helix

• ladder

Our characteristics are controlled by

• DNA

• genes

• chromosomes

• parents