you could determine if two genes are located close together on a chromosome.

A research team interested in mapping human genes discovered a new restriction length polymorphism (RFLP). The nature of the polymorphism is shown in the figure below.  a) They test the RFLP in a family with the pedigree below. The individuals colored blue are affected by hemophilia, a blood-clotting disease. On what chromosome is the RFLP found?

Describe the technique of chromosome walking, and explain why it is used.

Using a laser beam, you isolated several R bands from human chromosomes. Answer the following questions What kinds of genes are present in R bands? Which isochors do you expect to be present in the R band? What class of interspersed repeats will be present in R bands? What class of tandem repeats do you expect to find in RG bands? Would you expect to find telomere sequences in some R bands?

How many pairs of chromosomes are found in human body cells? What stain is used when making a karyotype and what specifically does it stain?

Are two genes linked if not linked to the same marker on a chromosome.? Let's say we want to figure out whether two genes are linked on a particular chromosome so we cross-test them to a marker gene on that chromosome. Gene A is found to have an approximate 50% recombinant frequency so we say it's not linked to the marker. The other gene B however is found to have 40% recombinant frequency with our marker so we say it's linked. Now the question is are the two Genes A and B linked or not? Please explain your reasoning.