3. 1. 5. 1 DNA and RNA Structure

Question 1

What does DNA do?

Answer 1

Holds genetic information.

Question 2

What does RNA do?

Answer 2

RNA transfers genetic information from DNA to ribosomes.

Question 3

What are ribosomes formed from?

Answer 3

Ribosomes are formed from RNA and Proteins.

Question 4

What is both DNA and RNA classed as?

Answer 4

DNA and RNA are both polymers of nucleotides.

Question 5

What are nucleotides formed from?

Answer 5

A pentose sugar (circle), a nitrogen-containing organic base (rectangle) and a phosphate group (Pentagon).

Question 6

What are the components of a DNA nucleotide?

Answer 6

Deoxyribose, a phosphate group and one of the organic bases (adenine, cytosine, guanine, or thymine)

Question 7

What are the components of an RNA nucleotide?

Answer 7

Ribose, a phosphate group , and one of the organic bases (adenine, cytosine, guanine, uracil)

Question 8

How is a phosphodiester bond formed?

Answer 8

A condensation reaction between two nucleotides forms a phosphodiester bond.

Question 9

Describe a DNA molecule.

Answer 9

A DNA molecule is a double helix with two polynucleotide chains held together by hydrogen bonds between specific complimentary base pairs.

Question 10

What is a RNA molecule?

Answer 10

An RNA molecule is a relatively short polynucleotide chain.