AQA Bio A-Level Module 8A

Name the process happening at number 1 in the diagram.

• DNA Replication

• Translation

• Mutation

• Transcription

Tags

NGSS.HS-LS1-1

TRUE or FALSE. The removal of one base to the DNA sequence might lead to a change on the succeeding (next) codon.

• True

• False

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

DOES THE DNA MUTATION ALWAYS ALTER THE AMINO ACID SEQUENCE?

• Yes

• No

Tags

NGSS.HS-LS1-1

Which of the following would result in a frameshift mutation?

• Insertions only
• Substitution only
• Deletion only
• Insertions and Deletions

Where do mutations occur?

• DNA and RNA
• DNA 
• RNA
• mRNA and tRNA

Tags

NGSS.MS-LS3-1

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

When there is one less base on the mRNA strand than the DNA strand it is a _________ mutation

• missense
• nonsense
• deletion
• insertion

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

chromosomal mutations cause a segment of the chromosome to repeat itself during replication.

• inversion

• duplication

• translocation

• deletion

Stem cells are ____________________.

• cells that grow uncontrollably
• undifferentiated and can turn into any type of cell
• those that never go through cell division
• differentiated cells that do one job

Tags

NGSS.HS-LS1-4