Course

Biology Science

Study Pack

Set 9 What Genes Are

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Question 1

(Multiple Choice)

Free
The CRISPR-Cas9 complex cuts through both strands of DNA in two neighboring sites.The chromosome does not break apart because during normal repair processes,the DNA sequences between the cut sites are

A) replaced with normal pig DNA.
B) looped outward and remain attached to the chromosome.
C) removed and the remaining DNA is relinked.
D) reattached to the DNA but switched to the opposite direction.

Answer

Question 2

(Multiple Choice)

Free
The two strands of a DNA molecule are held together by ________ bonds between their base pairs.

A) hydrogen
B) amino acid
C) phosphate
D) protein

Answer

Question 3

(Multiple Choice)

Free
The CRISPR-Cas9 system is made up of two guide ________ molecules and two Cas9 ________ molecules.

A) RNA; protein
B) protein; RNA
C) DNA; protein
D) protein; DNA

Answer