1.3 DNA and the production of proteins

Question 1

What is the function of DNA

Answer 1

The genetic information for making proteins

Question 2

Describe the structure of a DNA molecule

Answer 2

A double-stranded helix

Question 3

Name the three parts of a DNA molecule.

Answer 3

A phosphate group, a sugar molecule and a nucleotide base

Question 4

Name the complementary base pairs

Answer 4

A-T, C-G

Question 5

The base sequence determines

Answer 5

The amino acid sequence in a protein

Question 6

Describe mRNA

Answer 6

A complementary copy of the code from the DNA, in the nucleus, carried to a ribosome

Question 7

Which organelle synthesises proteins?

Answer 7

Ribosome

Question 8

What is a gene?

Answer 8

a section of DNA which codes for a protein

Question 9

What are chromosomes?

Answer 9

Structures in the nucleus that carry genes, made of DNA

Question 10

Name the structure within which DNA is contained.

Answer 10

Chromosomes

Question 11

What does the sequence of amino acids control?

Answer 11

Controls the shape and function of proteins