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Week 11 discussion
Initial post:
Your initial post can address any of the following topics regarding lectures 18-19; pick one of these topics to write about (1 initial post is assigned). Please begin with one of the following key words below.
- A question you have from the lecture, reading, or study outline. Explain what you know first then state your question. Highlight your question in bold.
- An answer to a question from the study outline.
- A summary of a key topic from this module.
- An explanation of something you learned from another website/ video/ animation/ news article related to this module (include a link to your source).
- Study question. 2 mock test questions with answers and explanations, related to this module.
- A personal experience related to this module.
Week 11 discussion Answer
Sex chromosomes (XX females, XY males) determine the sex of an individual in humans. Despite the fact that the X and Y chromosomes have vastly different quantities and sets of genes (the X has roughly 1,000 genes and the Y has only a few dozen), they both evolved from ordinary autosomes during the early evolution of mammals. The physical differentiation of sex chromosomes has been caused by recombination restriction followed by gene loss on the Y chromosome.