OBJECTIVE LIFE SCIENCE
GENETICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Disorders are caused by changes in the overall structure or number of what inside cells?
|
|
Alleles
|
|
|
Genes
|
|
|
Chromosomes
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -Down syndrome (Trisomy 21). FragileX syndrome. Klinefelter syndrome. Triple-X syndrome.
Detailed explanation-2: -Structural changes can occur during the formation of egg or sperm cells, in early fetal development, or in any cell after birth. Pieces of DNA can be rearranged within one chromosome or transferred between two or more chromosomes.
There is 1 question to complete.