1.

What Are The Functions Of Repetitive Dna ?

Answer»

The function of highly repetitive DNA, most of which is located in genetically inactive heterochromatin regions of chromosome is completely unknown.

POSTULATED function of highly repetitive DNA includes:

  1. Structural or organizational role in chromosomes.
  2. Involvement in chromosome pairing during meiosis.
  3. Involvement in crossing-over or recombination.
  4. Protection of important structural GENES.
  5. A repository of unessential sequences for the use in the FUTURE evolution of the SPECIES.
  6. No function at all — just “junk” DNA or “selfish” DNA or “molecular parasite” which is carried along by the process of replication and segregation of chromosomes.
  7. The validity of any of these postulations remains to be established.

The function of highly repetitive DNA, most of which is located in genetically inactive heterochromatin regions of chromosome is completely unknown.

Postulated function of highly repetitive DNA includes:



Discussion

No Comment Found