Gene Expression (e)

Question 1

How is a polypeptide formed?

Answer 1

Amino acids are linked by peptide bonds to form polypeptides

Question 2

Explain how the three-dimensional shape of a protein is formed?

Answer 2

Polypeptide chains fold to form the three dimensional shape of a protein, held together by hydrogen bonds and other interactions between individual amino acids.

Question 3

How is a proteins function determined?

Answer 3

Proteins have a large variety of shapes which determine their function.

Question 4

How is a phenotype determined?

Answer 4

Phenotype is determined by the proteins
produced as the result of gene expression. Environmental factors also influence a phenotype.