In biotechnology, sticky ends are select one:
a. dna fragments cleaved by a restriction enzyme so that both strands are the same length.
b. dna fragments that carry a higher charge than normal after they have been cleaved by restriction enzymes.
c. dna fragments cleaved by a restriction enzyme so that one strand is longer than the other.
d. dna fragments that attract a carbohydrate molecule to one end after being cleaved by a restriction enzyme.

Option (a).

Explanation:

Restriction enzymes are also known as molecular scissors that are used to cleave the specific DNA strands. Two main types of restriction enzyme are restriction endonuclease and restriction exonuclease.

The restriction enzyme has the ability to cleave the DNA fragment at or near the specific sites. The ends generated by the restriction enzyme has the same length of both the strands.

Thus, the correct answer is option (b).

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.