DNA and RNA

Question 1

Why is DNA used for?

Answer 1

it is used to store genetic information that the organism needs for it to grow and develop.

Question 2

What is a DNA molecule made from?

Answer 2

A pentose sugar, a nitrogen containing base and a phosphate group

Question 3

What is the pentose sugar in a DNA molecule called?

Answer 3

deoxyribose

Question 4

What are the possible DNA bases?

Answer 4

Adenine, thymine, cytosine, guanine

Question 5

What is the pentose sugar called in RNA?

Answer 5

ribose sugar

Question 6

What are the possible RNA bases?

Answer 6

Adenine, uracil, cytosine, guanine

Question 7

What is a polymer of nucleotides called?

Answer 7

A poly nucleotide

Question 8

How and where do nucleotides join up?

Answer 8

via a condensation reaction, between the phosphate group and the sugar of another

Question 9

What bond is formed between nucleotides?

Answer 9

a phosphodiester bond

Question 10

How many hydrogens bonds form between adenine and thymine/uracil?

Answer 10

2

Question 11

How many hydrogen bonds form between cytosine and guanine?

Answer 11

3