Review: Mutations

What describes a change in the DNA sequence?

• Transcription

• Translation

• DNA replication

• Mutation

• Apoptosis

Tags

NGSS.HS-LS3-2

What type of mutation involves substituting a DNA base with a different base but still forms the same protein?

• point mutation

• frameshift mutation

• silent mutation

• chromosomal mutation

Tags

NGSS.HS-LS3-2

Original DNA = TAC GAC TTG AAT

Mutated DNA = TAC GTA CTT GAA T

What type of mutation has occurred?

• Chromosomal mutation

• Point mutation

• Frameshift mutation due to adding extra base

• Frameshift mutation due to deletion of base

Tags

NGSS.HS-LS3-2

Original DNA = TAC GAC TTG AAT

Mutated DNA = TAC ACT TGA AT

What type of mutation has occurred?

• Chromosomal mutation

• Point mutation

• Frameshift mutation due to addition of base

• Frameshift mutation due to deletion of base

Tags

NGSS.HS-LS3-2

What are considered "negative" mutations?

• mutations in the DNA sequence that changes the resulting protein and harms the organism

• mutations in the DNA sequence that changes the resulting protein and benefits the organism

• mutations in the DNA sequence that produces the same protein

• all mutations are considered bad and harm the organisms

Tags

NGSS.HS-LS3-2

What are considered "positive" mutations?

• mutations in the DNA sequence that changes the resulting protein and harms the organism

• mutations in the DNA sequence that changes the resulting protein and benefits the organism

• mutations in the DNA sequence that produces the same protein

• all mutations are considered bad and harm the organisms

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Are all mutations bad?

• Yes
• No

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

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 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-LS1-1

NGSS.HS-LS3-2

DNA contains the code for (a)  

• Proteins
• Ribosomes
• Biomolecules
• Lipids

Tags

NGSS.HS-LS1-1