B5 DNA

Question 1

The genome is

Answer 1

the entire genetic material (DNA) of an organism

Question 2

Mutations…

Answer 2

are a change in the DNA

Question 3

Mutations effect

Answer 3

most mutations have no effect on the phenotype, some will have a small effect, whilst occasionally others will determine the phenotype.

Question 4

5 key properties of the genetic code

Answer 4

1. It is universal: same code used across species
2. Composed of nucleotide triplets
3. It is unambiguous: the same codon will always code for one amino acid
4. It is non- overlapping: each nucleotide is only part of one codon
5. It is degenerate: several codons can encode for the same amino acid