Question

(a) Expand VNTR and describe its role in DNA fingerprinting.
(b) List any two applications of DNA fingerprinting technique.

Answer 1

Answer:

Explained below

Explanation:

a) An abbreviated form for Variable Number Tandem Repeats is VNTR.

VNTR is the location of a nucleotide sequence in a genome arranged as tandem repeat. VNTR belongs to a class of satellite DNA. In an individual, the number of copies of nucleotide differs from chromosome to chromosome.  Allowing them to be used for personal or parental identification, each variant acts as an inherited allele. Their analysis is capable in genetics and biological research, forensics, and DNA fingerprinting. The number of tandem repeats and its size is taken into count in DNA fingerprinting.

b) To find criminals by forensic department, DNA fingerprinting is used. It is also used to solve paternity disputes. It is also used to find inherited diseases in newborn and prenatal babies.

Answer 2

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⚫It provides evidence acceptable in court.

⚫Paternity test-It help to decide true father or mother of child.

⚫It helps in tumor analysis.

⚫It helps to solve problems in immigration