DNA and Mutations

Substitution

• a different base or pair takes the place of what should have there

• a base or segment is added to the strand

• a base or segment has been deleted

Tags

NGSS.HS-LS3-2

The picture above represents

• insertion

• deletion

• substitution

Tags

NGSS.HS-LS3-2

DNA is

• Deoxyribonucleic Acid: the blueprint and directions for building an organism

• A segment of DNA, made up of a specific order of proteins, which codes for a trait

• Adenine-Thymine, Guanine-Cytosine

• a strand of three bases that get read on the DNA strand

Tags

NGSS.HS-LS1-1

The picture above represents

• insertion

• deletion

• substitution

Tags

NGSS.HS-LS3-2

What are the 4 nitrogen bases?

• adenine, thymine, cytoplasm, and guanine

• adenine, thymine cytosine, and guanine

• adenine, thymine, cytosine, and gylcerol

• adenine, thymine, cytosine, and glucose

Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG

• ATG TGA CAG

• TAC ACT GTC

• GTA AGT GAC

• CAT TCA CTG

Most mutations occur randomly

• True

• False

Tags

NGSS.HS-LS3-2

Mutations are always harmful.

• True

• False

Tags

NGSS.HS-LS3-2

An environment becomes colder. Some of the rabbits which live there have a mutation that causes their fur to be longer and thicker allowing them to stay warmer. This is an example of a

• positive mutation

• negative mutation

• neutral mutation

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Between 6,000 and 10,000 years ago a mutation led to blue eyes in humans. This is an example of a

• positive mutation

• negative mutation

• neutral mutation

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1