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.
people that have down syndrome have 47 chromosomes they get 23 from the mother and 23 from their father they are different from others because the have a extra chromosome that make them different from others
Down Syndrome people have 47 chromosomes instead of 46.
They have the normal amount but have an extra chromosome 21. So there would normally be 2 chromosome 21 but in down syndrome there are 3
47
There are 46 chromosomes in a normal human cell and 23 in the sex cells. People with down syndrome has 47 chromosomes.
47 chromosomes
down syndrome
Down syndrome is when you have a trisomy of chromosome number 21. So that means they have 47 chromosomes. An older name for Down Syndrome is Mongolism. That was considered a racist term because it made fun of the features of people from Mongolia. Its use was dropped in 1965 after a delegate from Mongolia asked that the name be dropped as a medical term.
Forty-seven. In Down syndrome, there is an extra 21st chromosome. It is also known as Trisomy 21.
Mistakes in meiosis may cause Down syndrome. The error happens when the chromosomes segregate into the gametes. The egg or sperm may have too many or too few chromosomes. Down syndrome has an extra chromosome in the 21st pair.
Down Syndrome is when you have a trisomy of chromosome number 21. So that means they have 47 chromosomes. An older name for Down Syndrome is Mongolism. That was considered a racist term because it made fun of the features of people from Mongolia. Its use was dropped in 1965 after a delegate from Mongolia asked that the name be dropped as a medical term.
Yes, a girl with Down syndrome can have a boyfriend, and many do. People with Down syndrome have the same relationship needs as people without Down syndrome.
Something called nondisjunction can cause too many chromosomes. Most result in the death of the fetus.
The same as all of the other cells.
If you mean how many; there are 46, or 23 homologous pairs. There are 22 autosomal pairs and the sex chromosomes (X and X/Y). This can vary in some disorders, such as Down Syndrome, Turner Syndrome, Klinefelter's Syndrome, and Triple X Syndrome.
Sierra Kyla and Justin have down syndrome