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What is the most common chromosomal abnormality in humans?
The most common chromosomal abnormality in humans is Down syndrome, which is caused by an extra copy of chromosome 21. It occurs in about 1 in 700 births.
If Rett syndrome is a chromosomal abnormality what is the abnormality?
Rett syndrome is not primarily caused by a chromosomal abnormality, but rather a genetic mutation in the MECP2 gene located on the X chromosome. This gene provides instructions for making a protein that is important for brain development. Mutations in the MECP2 gene disrupt the production of this protein, leading to the characteristic features of Rett syndrome.
Why are chromosomal alterations called syndromes not diseases?
Chromosomal alterations are called syndromes because they are a collection of symptoms that tend to occur together and are associated with a specific chromosomal abnormality. This differs from diseases, which are characterized by specific pathological processes or biochemical changes in the body. Chromosomal syndromes are typically caused by genetic mutations that result in a distinct set of physical and developmental characteristics.
What maternal age is associated with increased risk of conceiving a child with a chromosomal abnormality?
Maternal age is associated with an increased risk of conceiving a child with a chromosomal abnormality, particularly after the age of 35. As women age, the quality of their eggs declines, which can lead to higher rates of conditions like Down syndrome and other chromosomal disorders. The risk continues to rise significantly with age, especially for women over 40.
What is chromosomal imbalance?
Chromosomal imbalance refers to an abnormality in the number or structure of chromosomes in an individual's cells. This can be due to errors during cell division, exposure to certain chemicals or radiation, or genetic conditions. Chromosomal imbalances can lead to various health issues and developmental disorders.
If the disease is a chromosomal abnormality describe the abnormality?
what is the answer to this question
What age is a mother is at greatest risk of having a child with a chromosomal abnormality?
A mother is at greatest risk of having a child with a chromosomal abnormality, such as Down syndrome, when she is over the age of 35. As women age, the quality of their eggs declines, increasing the likelihood of chromosomal errors during cell division. The risk continues to rise significantly with advancing maternal age, particularly after 40.
Should physicians discourage a 42 year old woman from having children because of an increased chance of a chromosomal abnormality?
yes they should
How can chromosomal abnormalities of an unborn baby be diagnosed during pregnancy?
By what is called as amniocentesis, you can diagnose the chromosomal abnormality of the unborn baby. You do this procedure under cover of ultrasonography. The fetal cells will give you complete picture of the chromosomal abnormality of the unborn child.
What is a chromosomal defect?
A abnormality in the size, shape, or number of chromosomes.
What type of condition is trisomy?
Trisomy an abnormality in chromosomal development.
Is achondroplasia a chromosomal abnormality?
Yes, it takes place in chromosome 4.
Is anyone susceptible to this Down syndrome?
no, it is a chromosomal abnormality, not a contagious disease.
What is the number one cause of miscarriage?
chromosomal abnormality of the developing fetus.
What type of chromosomal abnormality is most likely to be viable in humans?
Trisomy
Abnormality that may be detected by examination of amniotic fluid?
substances or chromosomal abnormalities
Is chromosomal abnormality in albinism?
yes it is. It affects chromosome 11.
