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Differentiate between the followings:
(a) Repetitive DNA and Satellite DNA
(b) mRNA and tRNA
(c) Template strand and Coding strand

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(a) Repetitive DNA and satellite DNA

satellite DNA Repetitive DNA Satellite DNA
Repetitive DNA are DNA sequences that contain small segments, which are repeated many times. Satellite DNA are DNA sequences that contain highly repetitive DNA.

(b) mRNA and tRNA

mRNA tRNA
mRNA or messenger RNA acts as a template for the process of transcription. tRNA or transfer RNA acts as an adaptor molecule that carries a specific amino acid to mRNA for the synthesis of polypeptide.
It is a linear molecule It has clover leaf shape.

(c) Template strand and coding

Template strand Coding strand
Template strand of DNS act as a template for the synthesis of mRNA during transcription Coding strand is a sequence of DNA that has the same base sequence as that of mRNA (except thymine that is replaced by uracil in DNA)
It runs from 3" to 5" It runs from 5" to 3"

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