Genes, DNA and Chromosomes

Question 1

Explain how a gene codes for a protein

Answer 1

Exons within a gene code for a specific sequence of bases. A triplet of bases codes for 1 amino acid, therefore the sequence of bases in a section of DNA is responsible for the primary structure of the protein, and therefore it’s shape also.

Question 2

Describe the structure of DNA?

Answer 2

double helix made up of sugar-phosphate backbones and complementary base pairs

Question 3

What does it mean if 2 genes are linked?

Answer 3

they are on the same chromosome