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Flashcards in Genetic Variation Deck (13):
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What is a mutation?

Change in the genetic material

1

What three types of mutations are there?

Substitution
Addition
Deletion

2

What is a substitution mutation?

Replacement of one nucleotide in DNA by another nucleotide

3

What is a addition (insertion) mutation?

Insertion of one or more nucleotides into the DNA strand

4

What is deletion mutation?

Removal of one or more nucleotides into the DNA strand

5

What are silent mutations and where do they occur?

Silent mutations don’t change the amino acid coded for by the specific codon

6

What are genetic redundancies?

Genetic redundancy is now defined as the situation in which the disruption of a gene is selectively neutral. Biology shows us that 1) two or more genes in an organism can often substitute for each other, 2) some genes are just there in a silent state.

7

What three types of mutations are there?

Substitution
Addition
Deletion

8

What is a substitution mutation?

Replacement of one nucleotide in DNA by another nucleotide

9

What is a addition (insertion) mutation?

Insertion of one or more nucleotides into the DNA strand

10

What is deletion mutation?

Removal of one or more nucleotides into the DNA strand

11

What are silent mutations and where do they occur?

Silent mutations don’t change the amino acid coded for by the specific codon

12

What are genetic redundancies?

Genetic redundancy is now defined as the situation in which the disruption of a gene is selectively neutral. Biology shows us that 1) two or more genes in an organism can often substitute for each other, 2) some genes are just there in a silent state.