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given these two genotypes a...B...c...d A..b..C..D what genotypes would the progeny have post reciprocal cross over

given these two genotypes a...B...c...d A..b..C..D
what genotypes would the progeny have post reciprocal cross over
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Answer #1

The reciprocal crossover occurs when the two double stranded DNA undergo common sequence swap. In the above example two double stranded DNA sequence are as follow-

  • Sequence 1--- a..B..c..d
  • Sequence 2--- A..b..C..D

Depending upon the site of crossover or recombination three different progeny can be made post reciprocal cross over

  • Progeny 1---- a...B...C...D (S1), A....b...c....d (S2) (cross over between b and c)
  • Progeny 2---- a...b....C...D (S1), A....B....c....d (S2) ( crossover between a and b)
  • Progeny 3---- a....B...c...D (S1), A....b....C...d (S2) (crossover between c and d)
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