Problem:

Chromosome Rearrangements

Here is a depiction of the position of eight genes on chromosome 1, with a dash “-“ depicting the position of the centromere: ABC-DEFGH. Please name the kind of rearrangement described in each question below, and include, if appropriate, a mention of whether the rearrangement looks to be balanced or not.

Question 1: Please name the kind of rearrangement that will produce the following arrangement of genes on chromosome 1: AFED-CBGH

Question 2: Please name the kind of rearrangement that will produce the following arrangement of genes on chromosome 1: ABC-DEFBCGH

Question 3: Please name the kind of rearrangement that will produce the following arrangement of genes on chromosome 1: ABC-DGFEH

Question 4: Please name the kind of rearrangement that will produce the following arrangement of genes on chromosome 1: AC-DEFGH

Question 5: Please name the kind of rearrangement that will produce the following arrangement of genes:    A567BC-DEFGH AND   123-48

Question 6: Please name the kind of rearrangement that will produce the following arrangement of genes:   ABC-D678      AND    123-4FGH

Question 7: Please briefly describe the three mechanisms for autopolyploidy, and tell whether they create autotriploids or autotetraploids.

Please provide description of your answers.