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Doctor insights on: Extra Y Chromosome

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What are men like if extra y chromosome?

What are men like if extra y chromosome?

XYY: This syndrome is fairly well-known and one man in a thousand has it. Usually they escape detection as their intelligence matches the general population. They tend to be tall (which is fun) and get nasty acne (which is treatable). In my small series, parents write that they tend to speak later than other kids. The "natural criminal" stuff is media hype. ...Read more

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What Are the effects of Inversion on Y chromosome on the individual and his children?

What Are the effects of Inversion on Y chromosome on the individual and his children?

Y inversion: Review of literature J Hered 1982 May - June: Inverted Y chromosome does not impede the production of normal sperm and does not predispose to non-disjunction of other chromosomes in the progeny. Complicated subject. Consult genetic expert. ...Read more

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Does X chromosome sperm live longer than Y chromosome sperm? If so what is the lifespan difference?

Does X chromosome sperm live longer than Y chromosome sperm? If so what is the lifespan difference?

No evidence: There is no difference in the lifespan of different sexed sperm. The Y chromosome is trivially lighter than the X chromosome sperm which might help explain the fact that more males are conceived than females. ...Read more

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How is it possible for a blood test find a male "y" chromosome in a females blood after she got a kidney transplant?

How is it possible for a blood test find a male "y" chromosome in a females blood after she got a kidney transplant?

Microchimerism: The leukocytes in the transplanted kidney may enter the circulation of the recipient and stay there for years. If the donor was a male the circulating lymphocytes form the donor would carry a y chromosome. ...Read more

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Will stop smoking improve sperm quality for 36yo male with noa due to y chromosome azfc microdeletion? Plan for 2nd icsi.

Will stop smoking improve sperm quality for 36yo male with noa due to y chromosome azfc microdeletion? Plan for 2nd icsi.

Not my table: This is a highly complex question, and should be best posed to both the geneticists and the reproductive endocrinologists who are likely already involved in your care. However, in general, cigarette smoke impairs sperm motiity and function, and stopping improves it. Whether it makes a difference with your genetic abnormality, I have no clue. ...Read more

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What happens if a human gamete with an extra chromosome?

What happens if a human gamete with an extra chromosome?

Generally: it does not survive very long. There are some syndromes in which there are birth defects from this. Trisomy 21 -- Mongolism trisomy 18 http://en.wikipedia.org/wiki/Edwards_syndrome trisomy 13 More than 80% of children with Patau syndrome die within the first year of life ...Read more