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 is a it can be used as an energy source by organisms
Answer:
D
Explanation:
all the above because gog is a cloud and its condescending
The answer is TRUE because burning of coal is used to heat water
Answer:
Organism
Explanation:
All the things listed are the characters of an organism
