DNA Mutations

The material that makes up our chromosomes and stores our genetic information is

• RNA

• mRNA

• Blood

• DNA

Tags

NGSS.HS-LS3-1

Mutations are

• always harmful

• can be beneficial

• can happen during replication

• never happen

• can result in a new protein

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

If a mutation occurs in a section of DNA that is expressed

• nothing will change how DNA is expressed

• expression will not occur

• the protein will stay the same

• the expression of the gene could change

Tags

NGSS.HS-LS1-1

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

NGSS.HS-LS4-2

Normal-
GAG-CTC-GAC-AGA
Mutant
GAG CTC-CAC-AGA

• no mutation
• substitution
• insertion
• deletion

Tags

NGSS.HS-LS3-2

Original: ATC CAT
Mutation: ATC GCAT
What mutation occurred?

• deletion
• insertion
• silent
• transverse

Tags

NGSS.HS-LS3-2

What is a Gene?

• A segment of RNA that encodes for a protein
• A chromosome
• A segment of DNA that encodes for a protein
• Your genome

Tags

NGSS.HS-LS1-1

A mutation in the third base of a codon for the amino acid Proline (Pro) will always be a silent mutation. Which of the following pieces of information best supports this claim?

• Proline is always made from the same 3 bases

• As long as the first two bases on the mRNA codon are both C, it will always code for proline; regardless of the 3rd base

• Proline is a stop codon, so it isn't actually an amino acid and therefore cannot be mutated

• Proline has evolved to become resistant to harmful mutations

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2