Question

Why is it so important to be able to amplify dna fragments when studying genes? dna fragments are too small to use individually. a gene may represent only a millionth of the cell's dna. restriction enzymes cut dna into fragments that are too small. a clone requires multiple copies of each gene per clone?

Answer 1

Answer: Option A

Explanation:

It is important that the fragment of DNA should be amplified in order to get an optimum of DNA which is to be used for any purposes. While performing any experiment or using the DNA for research purposes requires DNA in a amount which is easily used for experiment.

A small size of DNA or a fragment of DNA is not suitable for the experiment. Any detection of bacterial growth, et cetera requires DNA in an optimum amount.

So, it should be amplified prior to the experiment.

Answer 2

The correct answer is: a gene may represent only a millionth of the cell's DNA.
The method used to amplify DNA fragments is called polymerase chain reaction (PCR). PCR is a technique used in molecular biology to produce thousands to millions of copies of a single targeted DNA sequence. When studying a specific gene, the scientist needs to be able to target and focus only on the DNA sequence which constitutes this exact gene. However, a gene is only a very small portion of an organism's genome. Therefore, the scientist uses PCR to amplify this DNA sequence and produce a large number of copies.