Module 9 Part 1

Select all that is true: Changes in DNA sequence can drive species to

• develop phenotypic variations

• adapt to changing environments

• evolution

• extinction

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

NGSS.HS-LS4-4

NGSS.HS-LS4-5

is responsible for causing changes in DNA sequence.

Tags

NGSS.HS-LS3-2

1

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

2

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

an alteration in DNA sequence

Tags

NGSS.HS-LS3-2

Classification of mutations based on type of molecular change: change from one base pair to another

Classification of mutations based on type of molecular change: results in a new triplet code for a different amino acid.

Classification of mutations based on type of molecular change: Result from insertions or deletions of a base pair, altering the triplet reading frame.•Can be very severe, mainly if they occur early in the coding sequence and if one of the many altered triplets will be UAA, UAG, or UGA, the translation termination codons.

Classification of mutations based on type of molecular change: results in triplet code for stop codon (translation terminated prematurely).

Classification of mutations based on type of molecular change: New triplet code still codes for the same amino acid.