I’m sure it is D I just took the test
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
The answer to this question is 1.DNA because RNA is single stranded.
The answer is A) food web. B is not actually a thing, and C and D are very different vocab words.
Your answer would be organism/organelle
