Question: 8. Some geneticists use the notation ZZ/ZW for chromosomes. Why is it so? Can you give any example of an organism in which it is

8. Some geneticists use the notation ZZ/ZW for chromosomes. Why is it so? Can you give any example of an organism in which it is used? 0.5 pts 9. Name the two abnormalities caused by aberrant sexual development and result of these abnormalities. What is the reason for these abnormalities? 1 pts. 10. What gene controls the male sexual development? Which protein is secreted by this gene which causes gonadal tissue of embryo to form testis? 1 pts. 11. Name the genetic mechanism by which the gene expression of X-linked genes is equalized?0.5 pts 12. What is a sex chromatin body or a Barr body? Is it found in males or females? Give reason. It is chromosome structure found in the nucleus of a female cell which is an inactivated X- chromosome. 1 pts

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