The condition in which an organism has complete extra sets of chromosomes is called polyploidy. This condition can cause a number of severe birth defects. Most do not live a full lifespan for their species.
If someone has an extra chromosome it means there was a genetic mutation that is abnormal in human development. It may result in problems with the person affecting them on a basic level, or may go fully unnoticed. A common disorder that can be caused by having an extra chromosome is Down's Syndrome.
The condition in which a diploid cell is missing a chromosome or has an extra chromosome is called aneuploidy.
No, not all cases of Down syndrome involve a complete extra chromosome. The most common form, known as trisomy 21, consists of an entire extra chromosome 21, resulting in three copies instead of the usual two. However, some cases are due to a Robertsonian translocation, where a part of chromosome 21 is attached to another chromosome, or mosaic Down syndrome, where some cells have the extra chromosome while others do not.
An abnormal number of chromosomes is called aneuploidy. If a chromosome has 3 of its kind, it is trisomic. The exact condition depends on which gene has the extra chromosome.
You might see an extra chromosome or a missing chromosome. You might see a piece of a chromosome missing, or a piece added onto another chromosome.
in Patau there is an extra chromosome in chromosome 13, in Edwars it the extra chromosome is in chromosome 18
It is a condition in which human males have an extra X chromosome. It is inherited when the extra X chromosome is retained because of a nondisjunction event during meiosis I (gametogenesis).
Aneuploid - the individual has an extra copy of one chromosome or is missing a chromosome.
If someone has an extra chromosome it means there was a genetic mutation that is abnormal in human development. It may result in problems with the person affecting them on a basic level, or may go fully unnoticed. A common disorder that can be caused by having an extra chromosome is Down's Syndrome.
A diploid cell with an extra chromosome. Basically a diploid with an extra chromosome of one type, producing a chromosome number of the form 2n + l.
no
Down syndrome occurs because of the extra chromosome on chromosome 21. If you go onto google images and type in karyotype of Down syndrome, you will find a picture of the extra chromosome. Instead of having two chromosomes on chromosome 21, there is an extra. Type your answer here...
An extra copy of Chromosome 18
In females, the extra X chromosome becomes inactive and becomes the Barr body.
Singnalurear
The condition in which a diploid cell is missing a chromosome or has an extra chromosome is called aneuploidy.
Down Syndrome is when there is an extra chromosome in someones DNA. More exactly it is when the 21st chromosome has an extra one.