The two chromatids of a duplicated chromosome are held together at a region of DNA called the centromere. Centromeres are the attachment points for microtubules, which are responsible for the guiding the movement of chromosomes during mitosis and meiosis.
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
It’s the 3rd answer if ur going by the picture
An obligatory parasite is a parasite that can not complete its life cycle without exploiting a suitable host
Answer:
False
Explanation:
we create more body cells with mitosis not meiosis , we create gametes with meiosis