Question

During meiosis, if crossing over occurs between a chromosome carrying an inversion and its homologue which doesn't carrying inversions, this may result in a formation of daughter chromosomes carrying duplications and deletions. true or false

Answer 1

Ans) true

Recombination between an inverted chromosome and normal chromosome result in generation of 4 types of gametes or daughter chromodome if inversion does not involve centromere:

Normal without inversion (produce fertile viable offspring)

With inversion and complete gene set (produce fertile viable offspring)

With two centromere. Sterile due to two centreres .some genes deleted ,some are duplicated .( non viable aneuploid)

Without centromere Sterile, aneuploids, some genes missing, some duplicated.

If centromere involved in inversion then these types of daughter chromosome results:

Normal without inversion (produce fertile viable offspring)

With inversion and complete gene set (produce fertile viable offspring)

Aneuoploids someof genes missing, some duplicates, sterile daughter gametes.