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Biotechnology: Principles and Processes — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYBiotechnology: Principles and Processes1 Mark
MCQ
Which ones are simple sequence repeats $\text{(SSRs)}$ :
  • ✓
    Minisatellite sequences
  • B
    Microsatellites
  • C
    Pseudogenes
  • D
    Multiple gene family.
✓

Answer

Correct option: A.
Minisatellite sequences
Simple sequence repeats $\text{(SSRs)},$ sometimes described as genetic 'stutters,' are $\text{DNA}$ tracts in which a short base $-$ pair motif is repeated several to many times in tandem $($e.g. $\text{CAGCAGCAG})$.
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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