Question

why dna test is done??

Answer 1

It is believed that height of a child depends upon the genes inherited from

parents. However, it is often seen that tall parents may have short children

and vice- versa.

(i) List the factor other than genes that can cause these variations.

(ii) Name the hormone which would be released during the following -

a) When a person is frightened

b) During growth of facial hair in boys

c) For regulating the level of blood sugar

d) Development of a tadpole into a frog

Answer 2

DNA fingerprinting is a chemical test that shows the genetic makeup of a person or other living things. It's used as evidence in courts, to identify bodies, track down blood relatives, and to look for cures for disease.

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