there is no answer so stop cheating okay or i will tell your parent
Trisomy 21, as illustrated by the karyotype, is caused by nondisjunction. This occurs when chromosomes do not separate properly during meiosis.
Answer is D) nondisjunction
If I am not mistaken, the answer is branch. For example a branch of the military is the U.S Navy.
Answer:
Inherited traits.
Explanation:
Inherited traits are ones passed down from parent to offspring!