1. Illustrate the crossovers of chromatids and the resulting gametic types of the given crossovers.2. Identify the frequency for each type of recovered chromatids after the crossover.3. Parental genotypes: homozygous dominant for 3 genes (AABBCC)homozygous recessive for 3 genes (aabbcc)Example: Single crossover between genes A and B of nonsister chromatids 2 & 3CrossoversGametic GenotypesChromatids RecoveredParental RecombinantвBb.22ab.1. SCO between genes B and C of nonsister chromatids 2 & 32. DCO between nonsister chromatids 2 & 33. DCO between 2 & 3; 1 and 34. DCO between 2 & 3; 1 & 45. DCO between 1 & 4; 2 & 36. DCO between 1 & 4; 2 & 47. DCO between 2 & 3; 1 & 28. DCO between 1 and 2; 3 & 4

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Answered: 1. SCO between genes B and C of…

1. SCO between genes B and C of nonsister chromatids 2 & 3 2. DCO between nonsister chromatids 2 & 3 3. DCO between 2 & 3; 1 and 3

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter12: Mendel, Genes, And Inheritance

Section: Chapter Questions

Problem 1TYK: The dominant C allele of a gene that controls color in corn produces kernels with color; plants...

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Question

1. Illustrate the crossovers of chromatids and the resulting gametic types of the given crossovers.
2. Identify the frequency for each type of recovered chromatids after the crossover.
3. Parental genotypes: homozygous dominant for 3 genes (AABBCC)
homozygous recessive for 3 genes (aabbcc)
Example: Single crossover between genes A and B of nonsister chromatids 2 & 3
Crossovers
Gametic Genotypes
Chromatids Recovered
Parental Recombinant
в
B
b.
2
2
a
b.
1. SCO between genes B and C of nonsister chromatids 2 & 3
2. DCO between nonsister chromatids 2 & 3
3. DCO between 2 & 3; 1 and 3
4. DCO between 2 & 3; 1 & 4
5. DCO between 1 & 4; 2 & 3
6. DCO between 1 & 4; 2 & 4
7. DCO between 2 & 3; 1 & 2
8. DCO between 1 and 2; 3 & 4

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