NEETZoologyMolecular Basis of Inheritance
What is the purpose of parental DNA?
Options
- ATo act as a template for synthesis of a new strand
- BTo produce two double stranded DNA identical to the parental DNA molecule
- CTo observe the constant ratios between Adenine and Thymine and Guanine and Cytosine
- DTo be complementary to each other
Correct answer
A. To act as a template for synthesis of a new strand
Step-by-step solution
The base pairing confers a very unique property to the polynucleotide chains. They are said to be complementary to each other, and therefore if the sequence of bases in one strand is known then the sequence in the other strand can be predicted. Also, if each strand from a DNA (let us call it as a parental DNA) acts as a template for synthesis of a new strand, the two double stranded DNA (let us call them as daughter DNA) thus produced would be identical to the parental DNA molecule. Because of this, the genetic imp