Question

Write the name of the technique to make lacs of copies of D.N.A. from a single copy in very limited time.

Answer 1

Answer:

polymerase chain reaction . in short ( PCR)

Answer 2

cDNA Library

Explanation:

• A gene is  the collection of different DNA sequences from an organism where as each sequences has been cloned into a vector for purification,storage and analysis
• The mRNA are highly represented of gene which express under the specific conditions
• The mRNA can not be directly cloned because they are unstable for example mRNA are converted into cDNAs. this process is known as cDNA library
• The DNA is found only eukaryotic organism,not the prokaryotic cells
• The cDNA library can be constructed by using mRNA because mRNA are the highly processed,intron- free of DNA having only coding sequence