AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

RECOMBINANT DNA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The method used to produce DNA fragments
A
is known as amplification.
B
is heating a solution of DNA.
C
uses restriction enzymes.
D
isolate DNA molecules from the nucleus.
Explanation: 

Detailed explanation-1: -If genomic DNA is isolated from one organism and cut with one particular restriction enzyme, a specific set of fragments can be separated and identified by electrophoresis. If DNA from a different organism is cut by the same restriction enzyme, a different set of fragments will be generated.

Detailed explanation-2: -In DNA cloning, restriction enzymes and DNA ligase are used to insert genes and other pieces of DNA into plasmids.

Detailed explanation-3: -Restriction enzymes are a basic tool for biotechnology research. They are used for DNA cloning and DNA fingerprinting.

Detailed explanation-4: -Restriction Fragmentation DNA restriction enzymes break DNA strands at specific sites based on the nucleic acid sequence. Thus, digestion with a given restriction enzyme or combination of restriction enzymes will produce fragments of different lengths that are directly related to the DNA sequence.

Detailed explanation-5: -A restriction enzyme is a protein isolated from bacteria that cleaves DNA sequences at sequence-specific sites, producing DNA fragments with a known sequence at each end. The use of restriction enzymes is critical to certain laboratory methods, including recombinant DNA technology and genetic engineering.

There is 1 question to complete.