What is one of the end results of site-specific recombination? Diagram your answer and answer in 1-2 sentences

draw a Conjugation diagram

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?

Why do human germ cells (cells that undergo meiosis to produce gametes) express the enzyme telomerase?

You are studying a small eukaryotic gene of about 2000 bp in length. About how many copies of histone H4 would you expect to find along this region of the chromosome?

A pair of paralogous repeats, A and B, have 96% sequence similarity and therefore can promote non-allelic homologous recombination (NAHR). They exist in four possible arrangements in a genome, illustrated below as arrangements 1 – 4. What is the result of NAHR between repeats A and B in arrangement 1? A.Translocation between chromosomes 1 and 2 resulting in monocentric chromosomes B.Deletion or duplication of the region between A and B C.Translocation between chromosomes 1 and 2 resulting in acentric and dicentric chromosomes D.Inversion of the region between A and B

Answer the following two questions. Ensure that your answer is separated into two parts, labelled A and B. a. Why is telomerase used by some eukaryotic cells but not prokaryotic cells? b. Clearly explain what the consequence is for a eukaryotic cell that lacks telomerase.