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A abnormality in the size, shape, or number of chromosomes.

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12y ago

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An inherited disease or disorder that is caused by a mutation in a gene or by a chromosomal defect?

There are many thousands of different mutations.


What is the chromosomal defect that causes Prader Willi?

its when seven genes chromosome 15 are missing or ununexpressed on the paternal chromosome.


Which chromosomal defect is caused when part of a chromosome breaks off at either end and attaches to another chromosome?

The chromosomal defect you are describing is known as a translocation. In a translocation, a segment of one chromosome breaks off and is reattached to a different chromosome, which can lead to genetic imbalances and various genetic disorders. This type of defect can occur in both somatic cells and germ cells and is often associated with certain cancers and congenital conditions.


Is down syndrome and pku caused by chromosomal abnormalities?

Down syndrome is caused by an additional chromosome while PKU is due to a mutation or defect in a gene.


Is the disease marfan syndrome a chromosomal ad normality?

Yes. Marfan syndrome is caused by a defect (or mutation) in the gene that tells the body how to make fibrillin-1.


Is cleft lip a chromosomal error or a multifactorial trait?

Cleft lip is considered a multifactorial trait, meaning it is caused by a combination of genetic and environmental factors rather than a chromosomal error. It can be influenced by both genetic predispositions and exposure to certain environmental factors during pregnancy.


What does chromosomal loci mean?

Chromosomal Loci is a Heterozygous


Is achondroplasia a chromosomal defect?

In humans it's an autosomal dominant trait resulting in dwarfism in heterozygotes due to premature closure of the long bone growth plates. In homozygotes the syndrome is lethal shortly after birth as the affected child cannot effectively breathe.


Can deformed people be fixed?

Yes, some deformed people are real. There are at least 1,827 ways people can come out deformed, but listing them all would be too long. Some examples are genetic defect, folic acid deficiency, and chromosomal abnormalities.


What are the chromosomal aberrations of Down syndrome?

There is no actual chromosomal change, there is an extra chromosome.


What could be described as a chromosomal mutation?

Chromosomal mutation can have lasting impacts on the person who this happens to. A version of a chromosomal mutation is the mutation that leads to Down's Syndrome.


What are diploid cellls?

Diploid cells are cells with full chromosomal number.Haploids are with half chromosomal number.