Question

15. Provided below are recognition sequences for restriction enzymes 1 (REI), 2 (RE2) and 3 (REU). Arrows indicate
the positions where the enzymes digest on the two strands. Which of the following can the RE1 digested DNA ligate
to?
A Only to RE1 digested DNA.
B Only to RE1 and RE2 digested DNA.
C Only to RE1 and RE3 digested DNA.
D All three REI, RE2 and RE3 digested DNA.
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Answer 1

$\frak{Answer}$

Option c Only to RE1 and RE3 digested DNA is the correct answer.

Answer 2

Recognition sequences are short and specific nucleotide sequences in DNA that restriction enzymes recognize. When a restriction enzyme recognizes a DNA sequence, it hydrolyzes the bond between adjacent nucleotides, causing the DNA molecule to cut.

What role do restriction enzymes play in bacteria?

They are extracted from bacteria and used in laboratories. Recognition sequences are short and specific nucleotide sequences in DNA that restriction enzymes recognize. When a restriction enzyme recognizes a DNA sequence, it hydrolyzes the bond between adjacent nucleotides, causing the DNA molecule to cut.

The position of the enzyme digest on the two strands would be option c) Only to RE1 and RE3 digested DNA.

To more learn about the positions where the enzymes digest on the two strands......

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