Question

In: Biology

Please explain and work through the following genetics problem: An organization of the data set given...

Please explain and work through the following genetics problem:

  • An organization of the data set given below in a table.
  • The determination of recombinant classes.
  • The determination of the double recombinant class.
  • All calculations and determinations of individual map distances.
  • A final map with the correct placement of genes relative to one another and their map distances.
  • Calculations of the coefficient of coincidence (with actual and expected DCOs) and calculation of interference.

Analyze this data set:

+++ - 1340

abc - 1362

+b+ - 400

a++ - 100

a+c - 420

++c - 970

+bc - 140

ab+ - 1010

Solutions

Expert Solution

As there is a higher probability of having no crossover the two genotypes with the highest number of offspring are no crossover and the two with lowest offspring are double crossover.

The whole method is explained below:-

So the order of genes is bac.

Coefficient of coincidence is 0.58 and interference is 0.42.


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