Question

1. What is the difference between constitutive
heterochromatin and facultative heterochromatin?
2. What might be the means by which the numbers of X
chromosomes and autosomes in a nucleus are
counted so that the appropriate number of X
chromosomes can be inactivated?
the 2 first questions from genomes 3 prof.T.A.Brown
3. please someone explain the splice donor mutation and Peroxisome Biogenesis Disorders.

Answer 1

Let me see how could I help you look for the answers. Yours are quite technically deep mate.

Answer 2

1. what have you read on heterochromatin?
tell me what you found out from reading your textbook and I will let you know if further information is required.