True or false: genes and proteins

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   A codon is three nucleotides long.

2. Statement is true

   Yes

   Statement

   AUG both starts translation and codes methionine.

3. Statement is true

   No

   Statement

   RNA is synthesised in the 3' to 5' direction.

4. Statement is true

   Yes

   Statement

   Inserting one base shifts the reading frame.

5. Statement is true

   No

   Statement

   Every amino acid has exactly one codon.

Instructions

Tap True or False for each statement.

Explanation