What Are the Frequencies of Gametes for Given Genotypes and Recombination Rate?

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SUMMARY

The discussion focuses on calculating the frequencies of gametes from two parental genotypes: Cd/cD and cd/CD, with a recombination rate of r=0.25. The gametes identified include Cc, CD, cd, dD, cC, cD, Cd, and dD. The primary method for determining these frequencies is through the application of the recombination frequency rather than using Punnett squares, which are not suitable for this specific calculation. Understanding homologous recombination is essential for accurately determining gametic frequencies in this context.

PREREQUISITES
  • Understanding of homologous recombination
  • Knowledge of genetic terminology (gametes, genotypes)
  • Familiarity with recombination frequency calculations
  • Basic genetics concepts (Punnett squares, allele combinations)
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  • Study the principles of homologous recombination in genetics
  • Learn how to calculate gametic frequencies using recombination rates
  • Explore advanced genetic mapping techniques
  • Review examples of gamete frequency calculations in genetic studies
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Genetics students, educators, and researchers interested in understanding gametic frequencies and recombination in genetic analysis.

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Homework Statement


2 parents, one has genotypes Cd/cD and the second has cd and CD
possible gametes and if r=.25 what are frequencies of gametes


Homework Equations


punnent square


The Attempt at a Solution


So the gametes came out to be Cc, CD, cd, dD and cC, cD, Cd, and dD but I am not sure how to get the frequency
 
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This isn't about Punnett squares. Punnett squares are for predicting the genetic makeup of progeny, when given gametic frequency.

You are given a recombination frequency and are asked to find gametic frequencies. This is about homologous recombination.
 

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