Question: 117: DNA polymorphism forms the basis of
(1) Both genetic mapping and DNA finger printing
(2) Translation
(3) Genetic mapping
(4) DNA finger printing
Answer: Option (1)
Explanation:
DNA polymorphism refers to the presence of variations in the DNA sequence among individuals of a population.
These variations can be in the form of differences in nucleotide sequences,
number of tandem repeats, or length of DNA fragments.
DNA polymorphisms are used as genetic markers to locate genes on chromosomes,
which forms the basis of genetic mapping.
They are also extensively used in DNA fingerprinting to identify individuals based on unique patterns in their DNA.
Translation is the process of protein synthesis from mRNA and does not depend on DNA polymorphism.
Therefore, DNA polymorphism forms the basis of both genetic mapping and DNA fingerprinting.
Hence, the correct answer is Option (1).