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

(a) Repetitive DNA and satellite DNA:-
Repetitive DNA:-Repetitive DNA are DNA sequences that contain small segments, which are repeated many times.
Satellite DNA:-Satellite DNA are DNA sequences that contain highly repetitive DNA.

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

(c) Template strand and coding strand:-
Template strand:-
1. Template strand of DNA acts as a template for the synthesis of mRNA during transcription.
2. It runs from 3’ to 5’.
Coding strand:-
1. 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).
2. It runs from 5’to 3’.

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