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Grade 12AIPMT

Sequence of which of the following is used to know phylogeny ?1) mRNA2) rRNA3) tRNA

Profile image of Dipika deori
8 Years agoGrade 12
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2 Answers

Profile image of mukul chandrakar
8 Years ago
Hi, ans. is rRNA 16S rRNA , component of 30S rRNA unit of prokaryotic ribosome is used for phylogeny due to it`s slow rate of evolution .
Profile image of omkar jilla
8 Years ago
the answer is rRNA 
Reason: some molecules are conserved since many years and are still carried from one generation to another, they haven’t undergone any big/vast changes like rRNA and some protein sequences.
 hence, we say that rRNA ia a very imp. factor to establish HOMOLOGY, to establish relationship between various organisms
such molecules are considered as ANCESTRAL characters, and are also very useful to study CHEMOTAXONOMY.

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