1) A a very important technique used by biologists, known as Polymerase Chain Re
ID: 175968 • Letter: 1
Question
1) A a very important technique used by biologists, known as Polymerase Chain Reaction. Which statement below best conveys what this technique usually achieves?
a Copying of genomic DNA
b Copying of targeted regions of any RNA molecule
c Amplification of total nuclear DNA
d Amplification of only short targeted DNA regions
e None of the answers
2)
From where does cDNA come from?
a .The genomic DNA of a cell
b The nuclear DNA of a cell
c The mRNA of a cell
d The RNA of a celL
E None of these answers
From where does cDNA come from?
Explanation / Answer
1. Correct option is d. ie is amplication of short targated DNA regions. It is a procedure which amplify selected DNA region and make it available to study.
2. The correct option is c. ie it comes from messenger RNA of a cell.
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