Mutations

Mutations

Mutations

• Spontaneous

• Cause changes in DNA

• Lead to evolutionary change (positive)

• Can lead to disorders and diseases (negative)

Duplication

duplicated a section of the chromosome and DNA Sequence

Duplication Example

• DNA Strand: ATC CAG AAC GGG TTA

• Mutated Strand: ATC CAG CAG AAC GGG TTA

Substitution

One base pair is changed

Substitution Examples

• DNA Strand: ATC CAG AAC GGG TTA

• Mutated Strand: ATC CAG TAC GGG TTA

Insertion

A base pair is added to the existing strand

Insertion Example:

• DNA Strand: ATC CAG AAC GGG TTA

• Mutated Strand: ATC CAG TAA CGG GTT A

Deletion

A base pair is deleted from the strand

Deletion Example

• DNA Strand: ATC CAG AAC GGG TTA

• Mutated Strand: ATC AGA ACG GGT TA

Multiple Choice

Mutations are spontaneous

• True

• False

Multiple Choice

The type of mutation in which a nitrogenous base is removed.

• Substitution

• Insertion

• Deletion

• Duplication

Multiple Choice

The type of mutation in which a nitrogenous base is copied

• Substitution

• Insertion

• Deletion

• Duplication

Multiple Choice

The type of mutation in which a nitrogenous base is exchanged with another nitrogenous base

• Substitution

• Insertion

• Deletion

• Duplication

Multiple Choice

The type of mutation in which a nitrogenous base is added to the DNA Sequence

• Substitution

• Insertion

• Deletion

• Duplication