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Will offspring have more or less chromosomes?
Normally, a mammal offspring will have 46 chromosomes, the same number as each of their parents; half of those chromosomes will come from each parent. However, there are mutations which can cause exceptions to this. For example, offspring with Trisomy 21, more commonly known as Down Syndrome, have an extra 21st chromosome (instead of the usual two--one from each parent). Mutations like this can have effects that range from mild to fatal.
What are the major chromosomal changes in trisomy?
Trisomy is defined as the presence of three homologous chromosomes. For example, Down's Syndrome is caused by trisomy-21, 3 copies of chromosome 21.
What is the presence of three of a particular chromosome?
The presence of three copies of a particular chromosome is known as trisomy. This genetic condition can lead to developmental abnormalities, such as Down syndrome which is caused by trisomy of chromosome 21.
What is trisomy mutation?
A trisomy is when a person has 3 versions of a chromosome. 'Normal' humans will only have 2 of each chromosome. For example, having 3 versions of chromosome 21 is known as Trisomy 21 or Down Syndrome.
What happens with incorrect separation of a homologous pair during meiosis?
Incorrect separation of a homologous pair during meiosis can lead to aneuploidy, where a cell has an abnormal number of chromosomes. This can result in genetic disorders or developmental abnormalities in the offspring.
Will offspring have more or less chromosomes?
Normally, a mammal offspring will have 46 chromosomes, the same number as each of their parents; half of those chromosomes will come from each parent. However, there are mutations which can cause exceptions to this. For example, offspring with Trisomy 21, more commonly known as Down Syndrome, have an extra 21st chromosome (instead of the usual two--one from each parent). Mutations like this can have effects that range from mild to fatal.
Can a male with 48 chromosomes survive?
A human male normally has 46 chromosomes. Some configurations of 48 chromosomes would result in a viable male offspring. This individual would have a trisomy of the sex chromosomes such as XYY and also a trisomy of chromosome 21 and have Down Syndrome.
Is color blindness monosomy or trisomy?
trisomy
Can trisomy 18 be cured?
There is no cure for trisomy 18
Is Edward's syndrome caused by a recessive gene?
Edward's syndrome is not technically recessive or dominant, because it is not caused by a single gene. Rather it happens due to a trisomy of chromosome 18 (or just of a part of said chromosome). Parent's may be healthy and still have offspring with the syndrome not because its recessive, but because the trisomy arises during meiosis of the gametes. Whatever happens to the gametes affects only the offspring not the carrier parent.
What type of condition is trisomy?
Trisomy an abnormality in chromosomal development.
Is klinefelter's syndrome monosomy or trisomy?
A trisomy. A monosomy is when there is only one of a chromosome. A trisomy is when there are three of a chromosome. In Klinefelter's syndrome, there are three sex chromosomes.
What is another name for trisomy-21, commonly known as Down syndrome?
Another name for trisomy-21, commonly known as Down syndrome, is trisomy 21.
What are the major chromosomal changes in trisomy?
Trisomy is defined as the presence of three homologous chromosomes. For example, Down's Syndrome is caused by trisomy-21, 3 copies of chromosome 21.
Trisomy is a mutation that results in a cell having an extra?
A trisomy is a condition in which a person has three copies of a chromosome instead of the usual two copies. A person can have full trisomy (three copies in every cell) or mosaic trisomy (three copies in some cells but not all).
Are there cases of trisomy besides down syndrome that can survive?
My son is 3 years old with full trisomy 18. I have some videos on youtube that I've put together with lots of trisomy families I've found on facebook. My awareness video is of over 100 surviving kids of trisomy 13 and 18. Just go to youtube and search 'trisomy awareness' or trisomy advocacy' and you'll find them. There is also a website called 'livingwithtrisomy13.com' that has stories of over 100 trisomy 13 kids on it. I, also, personally know of two kids with trisomy 8. So, yes, there are cases of kids surviving trisomies other than trisomy 21 (Down Syndrome). :) Alisha Hauber
What part of the body is involved in Trisomy 21?
The root of Trisomy 21 is within the chromosomes of the body cells.
