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Get it written →39857Some inherited traits are linked to sex chromosomes. And some of these traits can leave us prone to diseases. Sex-linked genes are those genes that are found on either the X or Y chromosome. If the gene is found on the Y chromosome, then only males inherit it, as males are XY. If the gene is located on the X chromosome, it can be inherited by both males and females, but may not be expressed in either. Recall that there are two alleles for each gene. If one allele is dominant and the other is recessive, the dominant trait masks the recessive trait.
Completing this activity will assist you in mastering:
MO1: Detail the structure of DNA and RNA, and explain the flow of genetic information in cells. (CO3)
In this activity, begin by reading the Module Notes and Chapters 10-12 in your textbook. Then choose one sex-linked disorder and respond the following six questions:
What are the symptoms?
Which chromosome is it associated with?
What is the prevalence of this disorder?
Is this a dominant, incomplete dominant, or recessive gene disorder?
Are there any genetic tests available to identify this disorder?
Are there any ethical issues with these tests?
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