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Males with Down syndrome usually do not father children, while females have lower rates of fertility relative to those who are unaffected. Fertility is estimated to be present in 30–50% of women. The poor fertility in men is thought to be due to problems with sperm development; however, it may also be related to not being sexually active
Wiki User
∙ 8y ago
Wiki User
∙ 15y agoNo. Down's Syndrome occurs when sperm and egg join.
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What percentage of sperm is defective?
In a normal human male, up to 10% of Sperm cells are defective.
What gender is affected mostly by down syndrome female or male?
The proportion of men to women with Down syndrome is about equal.
What chromosome is klinefelters syndrome located on?
they have a extra chromosome, a normal male is XY, a male with klinefelters is XXY.
When a male does not produce sperm at the normal amount?
He needs to see a urologist.
What is trisomy-21 klinefelter syndrome and turner syndrome?
All 3 conditions occur when non disjunction occurs in meiosis of the parent when they are producing gametes (egg or sperm). In normal meiosis, each parent gamete has 1 copy of each of the 22 somatic chromosomes and 1 sex chromosome. Non-disjunction occurs when 2 chromosomes go to one gamete and 0 go to the other. Trisomy 21 (Down Syndrome) is when the zygote has 3 copies (instead of 2) of chromosome 21. Klinefelter Syndrome (47 XXY) is when the zygote has 2 X chromosomes and one Y (a normal male is XY and a normal female is XX). Since they do have the Y chromosome, they are phenotypically (physically) male. Turner syndrome (45 X) is when the zygote has only 1 sex chromosome (X chromosome). They are phenotypically male.
What syndrome is inherited when an egg carrying two X chromosomes is fertilized by a sperm carrying on Y chromosome?
This combination XXY produces a male child with Klinefelter's Syndrome.
How likely is it for a sterile male to have babies?
"Sterile" men have sperm with low motility rates (meaning there either isn't as many sperm as normal, or the sperm that is there is not as active as normal). This makes it much harder than normal for that male to fertilize an egg. How likely it is that he MIGHT still fertilize largely depends on what is causing the 'sterility'.
Would a male with Down syndrome and a male without Down syndrome have a child with Down syndrome?
== == * I did some research and learned that men with Down syndrome are usually sterile. Most women can get pregnant and have children. Since there is a high risk of Down syndrome in the baby (35%-50%), many times the pregnancy would end in a miscarriage. But many Down syndrome people have had children. * Technically yes, but it's unlikely. Fertility is greatly reduced in both males and females with Down syndrome, although there have been a few cases of males fathering children and females bearing them. * Actually, there has only been 1 case of a male fathering a child. A women with Down syndrome can have children, but there is a 50% chance that the baby will be born with Down syndrome.
What is the male female ratio of those who have Down syndrome?
1 in 10
What syndrome is inherited when an egg carrying two x chromosomes is fertilized by a sperm carrying one y chromosome?
This combination XXY produces a male child with Klinefelter's Syndrome.
What syndrome is inherited when an egg carrying two chromosomes X is fertilized by a sperm carrying one Y chromosome?
This combination XXY produces a male child with Klinefelter's Syndrome.
What is the maximum sperm count achieved by a male?
The normal range of sperm per milliliter is between 40 and 300 million. There is no defined maximum. The average male will have produced approximately 400 billion sperm over a lifetime.
