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Anonymous
wrote...
2 months ago

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Anonymous
wrote...
2 months ago
 1)https://biology-forums.com/index.php?topic=1922007.msg49592462)9%Explanation :% of recombination = (number of recombinant / total offspring) *100= (45/500) *100=9 %3)Answer is 135Distance between N and O = 27 muRecombination frequency between N and O = 27%Assuming the genes are in coupling combination,Parental cross: NnOo X nnooProgeny:Total progeny = 500Parental combinations = 73%NO/no + no/no = 73% = 500*0.73 = 365NO/no = no/no = 36.5% = 500*0.365 = 182.5Recombinations = 27%No/no + nO/no = 27% = 500*0.27 = 135NO/no = no/no = 13.5% = 500*0.135 = 67.54)Answer is 11%Explanation- The frequency of crossing over between any two genes of the same chromosome is directly proportional to the distance between them. This frequency can be calculated to construct linkage maps.# Recombination frequency is the genetic linkage between two alleles in a chromosome. The frequency tells us about the changes in crossing over between them.# A recombination frequency of less than 50% indicates linked genes. A value of over 50% is unlinked genes.# Low values show that they are close together.# Here the distance between A and D is 11 map units. So their recombination(crossing over) frequency is 11%.Hope that helps! Attached file Thumbnail(s): You must login or register to gain access to this attachment.