4. and produce gametes that are dominant C phenotype. Draw a diagram clearly showing how intragenic recombination can take an individual who is cc

1.Describe the rearrangement in chromosomes A-C. indicate the specific markers genes flanking the crossover/breakage points (e.g., a translocation with breakpoints between markers X and Z). 2.Chromosome rearrangements can be caused by crossing over between repetitive DNA sequences. Draw a picture similar to Figure showing how crossovers between repetitive sequences could have produced chromosome rearrangement A. indicate the location and orientation of the repetitive DNA segments relative to the marker genes.

Describe step 5 of recombination: Branch migration

5

2) In humans, one X chromosome in females is inactivated. Why does a female with one X chromosome show Turner syndrome? What is the difference between two X chromosomes with one X inactivated and one X chromosome in a female?

15. what is The ratio of the observed number of double recombinants to the number of double recombinants expected to occur?

Describe how non-allelic recombination can change the genome Describe how recombination can result in loss of heterozygosity

1. Construct a map of a chromosome containing 4 genes. Some of the distances between these genes are listed below. The distance between genes R and C is 10 units The distance between genes C and P is 13 units The distance between genes P and R is 3 units The distance between genes S and C is 18 units The distance between genes S and R is 8 units SPRC D. What two genes would likely have the most recombination events between them? S and C P and R E. What two genes would likely have the fewest recombination events between them? F. How many units are between S and P?