Need help with my Biology question – I’m studying for my class.
This assignment consists of two questions. Each of your responses should be one or more paragraphs long, depending upon the depth of the question. An answer consisting of only a few short sentences is insufficient, and will receive a poor grade. Please include references where appropriate.
- Describe how the human Y chromosome is different from the human X chromosome in terms of overall size and total number of genes. How does the Y chromosome determine maleness in a human embryo?
- Almost all calico cats are female. Use the terms Lyon hypothesis, X-inactivation, Barr body, and dosage compensation to explain the mechanisms that give calico cats their patchwork coats. Under what circumstances can a calico cat be male?