A abnormality in the size, shape, or number of chromosomes.
neither, it is a birth defect
There are many thousands of different mutations.
its when seven genes chromosome 15 are missing or ununexpressed on the paternal chromosome.
Down syndrome is caused by an additional chromosome while PKU is due to a mutation or defect in a gene.
Yes. Marfan syndrome is caused by a defect (or mutation) in the gene that tells the body how to make fibrillin-1.
chromosomal defect
Chromosomal Loci is a Heterozygous
Chromosomal disorders are caused by abnormalities in the chromosomes.
Chromosomal disorders are caused by abnormalities in the chromosomes.
There is no actual chromosomal change, there is an extra chromosome.
F episomes is carriying chromosomal fragmebt