Mutations

What mutation has occurred here?

T-G-A-C-C-A

T-G-A-G-C-A

• Substitution

• Deletion

• Insertion

• Frameshift

Tags

NGSS.HS-LS3-2

Most mutations are ______________.

• neutral

• harmful

• beneficial

Tags

NGSS.HS-LS3-2

DNA molecule segment is : TTACGCAAG

The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.

• Substitution

• Deletion

• Insertion

• Inversion

Tags

NGSS.HS-LS3-2

A mutation is defined as:

• A change in the cell's structure

• Anything that changes in an embryo

• Any change in the physical features of a human

• A change in the DNA sequence

Tags

NGSS.HS-LS3-2

ATTTGAGCC- Original

ATTGAGCC - Mutated

The example above is an example of a

• Insertion - Frameshift

• Deletion - Substitution

• Deletion - Frameshift

• Substitution - Point

Tags

NGSS.HS-LS3-2

What mutation has occurred here?

T-G-A-C-C-A

T-G-A-G-C-A

• Substitution

• Deletion

• Insertion

• Frameshift

Tags

NGSS.HS-LS3-2

Why are insertion and deletion (frameshift) mutations so harmful?

• They change all of the codons from the mutation on down the line, which changes the amino acid sequence

• They insert things that an organism doesn't need.

• They often delete things that organisms need.

• Insertion and deletions are not any more harmful than substitution mutations.

Tags

NGSS.HS-LS3-2

Identify the DELETION mutation from the following:

ATG CCA AAT

• ATG TCA AAT

• ATG CCT AAA T

• ATC CA AT

• ATG CCA AAT

Tags

NGSS.HS-LS3-2

Mutations are always bad/harmful.

• True

• False

Tags

NGSS.HS-LS3-2

Possible negative consequences of mutations could be genetic ____________________ and cancer.

• diversity

• disorders

• dominance

• duplication

Tags

NGSS.HS-LS3-2