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People with a Down syndrome have 27 chromosomes?
yes, whereas normal people have 23 pairs of chromosomes
People with down syndrome have how many chromosomes?
47There are 47 chromosomes in someone with Down syndrome; the 21st pair has an extra chromosome. Most people have 46 chromosomes. Down syndrome is also known as "Trisomy 21" - a reference to the fact that someone with Down syndrome has 3 pairs of chromosomes on their 21st pair.
How many chromosomes are present in each cell in this human?
There are 46 chromosomes in a normal human cell and 23 in the sex cells. People with down syndrome has 47 chromosomes.
Give example of a person having less chromosomes?
Well one example is people with Down Syndrome.
How are cells of a person with Down syndrome different from those of a person without the disorder?
In Down syndrome, a person's cells have an extra copy of chromosome 21. In other words, instead of a pair of chromosomes, a person with Down syndrome has three of that chromosome. Down syndrome most often occurs when chromosomes fail to separate properly during meiosis. People with Down syndrome have a degree of mental retardation. Heart defects are also common, but can be treated.
Does the Y chromosome in Klinefelters syndrome look like the X chromosome?
No. People with Klinefelter's syndrome have a normal Y chromosome and 2 normal X chromosomes.
Why is it that a mongoloid person have 65 chromosomes?
People with Down syndrome, also called mongoloidism have 47 chromosomes. Having 65 chromosomes would be lethal, as normally having 47 chromosomes is lethal. Down syndrome is also known as trisomy 21, because instead of two copies of chromosome 21, a person with Down syndrome has three copies, which accounts for the 47th chromosome.
What genes or chromosomes is the muitation that causes turners syndrome?
Turner syndrome is the result of one of the two X chromosomes being missing or damaged in some or all cells. These chromosomes are the sex chromosomes, which determine whether a person will be male or female. As people with Turners only have an X chromosome and no Y chromosome they are born female.
How are the cells of a person with Down syndrome different from those of a person without Down syndrome?
In Down syndrome, a person's cells have an extra copy of chromosome 21. In other words, instead of a pair of chromosomes, a person with down syndrome has three of that chromosome. Down syndrome most often occurs when chromosomes fail to separate properly during meiosis. People with down syndrome have a degree of mental retardation. Heart defects are also common, but can be treated.
Can you get Down syndrome from your father?
you can not "get" down syndrome, you are either born with it or you are not born with it. there has only been one documented case of a male with down syndrome fertilizing an egg and it resulted in a miscarriage. down syndrome is not something you can catch. it is a chromosomal defect, a fluke of nature. it is also known as Trisomy 21. typically advanced people are born with 46 pairs of chromosomes. each pair has only two chromosomes. people with down syndrome have an extra chromosome pair of the 21st set of chromosomes. so people with down syndrome have 47 pairs of chromosomes. Three to four percent of all cases of trisomy 21 are due to Robertsonian Translocation. In this case, two breaks occur in separate chromosomes, usually the 14th and 21st chromosomes. There is rearrangement of the genetic material so that some of the 14th chromosome is replaced by extra 21st chromosome. So while the number of chromosomes remain normal, there is a triplication of the 21st chromosome material. Some of these children may only have triplication of part of the 21st chromosome instead of the whole chromosome, which is called a partial trisomy 21. hope this helps your question. =]
How are the cells from a person with down syndrome different from a person without the disorder?
In Down syndrome, a person's cells have an extra copy of chromosome 21. In other words, instead of a pair of chromosomes, a person with Down syndrome has three of that chromosome. Down syndrome most often occurs when chromosomes fail to separate properly during meiosis. People with Down syndrome have a degree of mental retardation. Heart defects are also common, but can be treated.
How are the cells of a person with down syndrome different from those of Person without the disorder?
In Down syndrome, a person's cells have an extra copy of chromosome 21. In other words, instead of a pair of chromosomes, a person with down syndrome has three of that chromosome. Down syndrome most often occurs when chromosomes fail to separate properly during meiosis. People with down syndrome have a degree of mental retardation. Heart defects are also common, but can be treated.
