Chapter 3- What Is DNA

Question 1

How many chromosomes are in each cell? And which cells only have 23?

Answer 1

46 chromosomes 23 pairs are in normal cells, but in sex cells there are only 23 (11.5 pairs)

Question 2

What do pieces of DNA make up?

Answer 2

Pieces of DNA make up GENES

Question 3

What are genes made up of?

Answer 3

They are made up of DNA and are part of your chromosomes

Question 4

What is base pairing? REMEMBER AT THE GOLF CLUB

Answer 4

A base pair is one of the pairs A-T or C-G

Adenine Thymine

Guanine Cytosine

Question 5

What are the 3 parts of an animal cell?

Answer 5

The cell membrane, nucleus and cytoplasm

Question 6

Where are your chromosomes found?

Answer 6

They are found in every nucleus in every cell in your body

Question 7

What does DNA stand for?

Answer 7

Deoxyribonucleic Acid

Question 8

What is a double helix?

Answer 8

A double helix is what a strand of DNA looks like

Question 9

What is sugar phosphate backbone?

Answer 9

Sugar phosphate backbone is an important stuctural component of DNA. It consists of 5-carbon deoxyribose sugars and phosphate groups