AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

CLONING GENES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The site where restriction enzymes cut are a called:
A
cut sites
B
restriction sites
C
recognition sites
D
cleave sites
Explanation: 

Detailed explanation-1: -How is a restriction site recognized by the restriction enzymes? Restriction enzymes are isolated from the prokaryotes. They recognize the specific DNA sequences and bind to it. These are known as restriction sites.

Detailed explanation-2: -The site recognized by a restriction enzyme to cleave DNA is called a recognition site. These sites are located on a DNA molecule containing specific sequences of nucleotide (4-8 base pair)

Detailed explanation-3: -Yes, Restriction sites, or restriction recognition sites, are locations on a DNA molecule containing specific (4-8 base pairs in length) sequences of nucleotides, which are recognized by restriction enzymes.

Detailed explanation-4: -How do restriction enzymes work? Like all enzymes, a restriction enzyme works by shape-to-shape matching. When it comes into contact with a DNA sequence with a shape that matches a part of the enzyme, called the recognition site, it wraps around the DNA and causes a break in both strands of the DNA molecule.

Detailed explanation-5: -Restriction endonuclease enzymes cut the DNA strands from within and at specific sites. These sites are known as recognition sequences.

There is 1 question to complete.