Question

DNA evidence that is old or in poor condition can sometimes be salvaged and analyzed by using _____.

PCR amplification
Gel electrophoresis
DNA from the mitochondria instead of the nucleus
RNA

Answer 1

B                                                                                                                                               !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!                 

Answer 2

Answer: PCR amplification

Step-by-step explanation:

If the sample amount of DNA is not enough that any research or experiment can be carried out on it, then polymerase chain reaction can be used to amplify the amount of DNA.

So, for old and poor DNA which is not present in enough quantity is amplified using this technique. In this technique the number of DNA is amplifies exponentially.

So, the correct answer is Option A