OBJECTIVE LIFE SCIENCE
BIOTECHNOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which of the following cuts DNA into small pieces?
|
|
dissolving blue dye
|
|
|
restriction enzymes
|
|
|
surgically cutting DNA under microscope
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -Restriction endonucleases are enzymes that cleave DNA molecules into smaller fragments.
Detailed explanation-2: -Restriction endonuclease enzymes cut the DNA strands from within and at specific sites. These sites are known as recognition sequences. Every restriction endonuclease has a specific sequence and cuts the DNA wherever the sequence is encountered.
Detailed explanation-3: -Restriction enzymes are DNA-cutting enzymes. Each enzyme recognizes one or a few target sequences and cuts DNA at or near those sequences. Many restriction enzymes make staggered cuts, producing ends with single-stranded DNA overhangs. However, some produce blunt ends.
There is 1 question to complete.