MCQ
Which ones are simple sequence repeats (SSRs):
- AMinisatellite sequences
- BMicrosatellites
- CPseudogenes
- DMultiple gene family.
Explanation:
Simple sequence repeats (SSRs), sometimes described as genetic 'stutters,' are DNA tracts in which a short base-pair motif is repeated several to many times in tandem (e.g. CAGCAGCAG). These sequences experience frequent mutations that alter the number of repeats similar to Multigene Family, a set of genes descended by duplication and variation from some ancestral gene.
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$I.$ very long molecule
$II.$ double-stranded
$III. DNA$ or $RNA$
$IV$. complementary to a part of desired gene
The correct pair is