A chromosomal abnormality refers to any alterations in the number, structure, or arrangement of chromosomes in a cell. These abnormalities can result in genetic disorders or birth defects, affecting an individual's development and overall health. Common examples include Down syndrome, Turner syndrome, and Klinefelter syndrome.
No, Marfan syndrome is not a chromosomal abnormality. It is a genetic disorder caused by a mutation in the fibrillin-1 (FBN1) gene, which affects the body's connective tissue. This gene is located on chromosome 15.
No, crossing over is a normal genetic process that occurs during meiosis when homologous chromosomes exchange genetic material. Chromosomal abnormalities are structural or numerical changes to the chromosomes that can result in genetic disorders.
Trisomy 21 (Down syndrome) is the most common type of chromosomal abnormality that is viable in humans. Individuals with Down syndrome have an extra copy of chromosome 21, which can result in distinctive physical characteristics and developmental delays, but many individuals with Down syndrome lead healthy and fulfilling lives.
A karyotype refers to the number and appearance of chromosomes in an individual's cells. Trisomy specifically refers to the presence of an extra copy of a chromosome, resulting in a total of three copies instead of the usual two. Therefore, a karyotype with a trisomy indicates the presence of this chromosomal abnormality.
A mutation.
what is the answer to this question
A chromosomal abnormality occurs when any of the genes that make up a human, animal, or plant has a genetic mutation.
A abnormality in the size, shape, or number of chromosomes.
Trisomy an abnormality in chromosomal development.
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.
Trisomy
chromosomal abnormality of the developing fetus.
no, it is a chromosomal abnormality, not a contagious disease.
Yes, it takes place in chromosome 4.
substances or chromosomal abnormalities
yes it is. It affects chromosome 11.
It is called Patau syndrome and is a chromosomal abnormality