XX individuals can be sex-reversed males if one of their X chromosomes contains a translocated portion of the Y chromosome that includes the SRY gene. In light of what you now know about X-chromosome inactivation, it seems that this karyotype might have more complex consequences. In fact, although most such males are completely sex-reversed, X-chromosome inactivation can cause some of these XX males to have varying degrees of residual female characteristics. a. X-chromosome inactivation in normal XX embryos occurs earlier in development than SRY production in normal XY embryos. When present on a translocation X chromosome, SRY is subject to inactivation. Formulate a hypothesis to explain why many XX individuals with a translocation X chromosome that includes the SRY gene are not completely sex-reversed (male). b. Based on your answer to part (a), why do you think some individuals with this karyotype are completely sex-reversed?

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Q: Describe the process of X-chromosome inactivation in mammals

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Q: Why is an X chromosome needed for survival?

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Q: 48. Which of the following is the correct mechanism of equalizing X-encoded gene products in humans?…

A: As per our policy we are answering the first question only.  For the rest of the question kindly…

Q: 10. A. In each human female cell, either the maternal or paternal X chromosomes is turned off by the…

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A: Since we only answer up to 3 sub-parts, we’ll answer the first three. Please resubmit the question…

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A: E. "The normal X chromosome (no mutation in Xist) will always be inactivated" is correct option

Q: Outline the process of X-chromosome inactivation.

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Q: Discuss the types of experimental observations that Mary Lyonbrought together in proposing her…

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Q: “carrier

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Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.