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In females, the extra X chromosome becomes inactive and becomes the Barr body.
What else can I help you with?
How does the cell adjust to the extra X- chromosome in the female cells?
In female cells with an extra X chromosome (resulting in a condition called Triple X syndrome), the cell can undergo a process called X-inactivation where one of the X chromosomes is inactivated to prevent overexpression of genes. This helps balance gene dosage between XX and XY individuals. However, not all genes on the extra X chromosome may be inactivated, which can lead to variable symptoms in individuals with Triple X syndrome.
Down syndrome is a genetic disorder caused by the presence of an extra chromosome in the body cells of humans this extra chromosome occurs in the gamete as a result of?
an error in meiotic cell division
How do cells of people with Down syndrome differ from those of others?
They have an extra chromosome 21.
Finding an occasional vermillion-eyed female can be explained by the occurrence of an extra chromosome from the for the trait?
It is likely that the vermillion eyes in the female are due to a random genetic mutation or chromosomal abnormality, rather than a specific gene. The presence of an extra chromosome could disrupt normal eye pigmentation, resulting in the unique color. This occurrence is rare and may not follow typical inheritance patterns.
What is the medical condition mosaicism?
A type of trisomy, where only some of the cells in the body have the extra chromosome.
What condition results when cells receive 3 copies of chromosome twenty one?
Down syndrome occurs when an individual receives an extra 21st chromosome.
Do all cases of down syndrome have a complete extra chromosome?
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.
How do the cells of people with down syndrom differ from those of others?
People with Down syndrome have an extra copy of chromosome 21 in their cells, leading to 47 chromosomes instead of the usual 46. This genetic condition can result in various physical and cognitive differences, such as distinctive facial features and intellectual disabilities, compared to individuals without Down syndrome.
What condition occurs when a person's cells have an extra copy of chromosome 21?
down syndrome !! hope this helps
What is the difference between Edward's syndrome and Patau's syndrome?
in Patau there is an extra chromosome in chromosome 13, in Edwars it the extra chromosome is in chromosome 18
What is the term for an individual who has an extra copy of one chromosome or is missing a chromosome - Is it something-'ploid'?
Aneuploid - the individual has an extra copy of one chromosome or is missing a chromosome.
How does trisomy occur?
Trisomy occurs when an individual has three copies of a particular chromosome instead of the usual two. This can happen during the formation of sperm or egg cells, leading to an extra copy of the chromosome in the resulting embryo. Trisomy can result in conditions like Down syndrome, where there is an extra copy of chromosome 21.
