Explain how females avoid having a double dose of x-linked

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Reference no: EM133633948

Part 1a. Describe autosomes. Explain how many pairs of autosomal chromosomes humans have in their genome. Identify which chromosomal pairs pictured in Figure 4 correspond to the autosomal chromosomes.

Part 1b. Describe how many pairs of sex chromosomes humans have in their genome. Explain which sex chromosomes females have in their genome. Explain which sex chromosomes males have in their genome? Identify which chromosomal pair(s) pictured in Figure 4 corresponds to sex chromosomes? Explain whether the karyotype is from a male or female. Explain how you determined whether the human karyotype was from a male or female.

Part 2. While sex-linked genes do exist on the Y chromosome, we mainly focus on sex-linked genes on the X chromosome for this class. If a particular gene is sex-linked and carried on the X chromosome, explain how many copies of the gene females will have in their genome. Explain how many copies males will have in their genome.

Part 3. Use your answer from Part 2 to explain why diseases that are recessive and are X-chromosome linked tend to affect more males than females.

Part 4. Describe what gene is responsible for "maleness" in mammals. Describe which chromosome contains the gene responsible for "maleness" in mammals.

Part 5. Explain how females avoid having a double dose of X-linked genes as compared to males. Describe what gene is responsible for this process. Describe what happens in an XXY male.

Reference no: EM133633948

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