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How is it possible that the SRY gene could end up on the X chromosome or be missing from the Y chromosome? A) X chromosome

B) Y chromosome
C) Z chromosome
D) A chromosome

1 Answer

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Final answer:

The SRY gene can be translocated to the X chromosome or be missing from the Y chromosome due to genetic mutations or errors during meiosis. This can result in a male with XX chromosomes or a female with XY chromosomes.

Step-by-step explanation:

The SRY gene is responsible for the development of male sex characteristics in humans. This gene is located on the Y chromosome. However, in rare cases, due to genetic mutations or errors during meiosis, the SRY gene can be translocated to the X chromosome or be missing from the Y chromosome.

For example, if there is a translocation event between the X and Y chromosomes, the SRY gene may be transferred to the X chromosome, resulting in a male with XX chromosomes. On the other hand, if there is a deletion or mutation in the SRY gene on the Y chromosome, the individual may develop as a female, despite having XY chromosomes.

These rare occurrences highlight the complexity of genetic inheritance and the potential for variations in sex determination.

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