Question : The master copy of genetic information is
Option 1: Nucleus
Option 2: rRNA
Option 3: mRNA
Option 4: DNA
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Correct Answer: DNA
Solution : The correct answer is DNA .
DNA is the master copy of genetic information. DNA is a double-stranded molecule that holds all of the genetic information required for the construction, and maintenance of an organism. Except for red blood cells, it is contained in the nucleus of every cell in the body. Adenine (A), cytosine (C), guanine (G), and thymine (T) are the four nucleotides that make up DNA. The nucleotides are organised in a certain order that encodes the genetic information for each gene.
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