Answer:
Biotic Factors are living things
and Abiotic Factors are non- living
Explanation:
non-disjunction is a pathological event that occurs during the second anaphase in meiosis when sister chromatids are not separated. As a result one of the resulting cells will have 1 extra chromosome and the other will be 1 short. An example of a non-disjunction that can occur in humans is Down syndrome that has a frequency of about 1/1000 people. It is caused by the non-disjunction of the 21st pair of chromosomes.
I believe its A because a bonds with t g bonds with c and c bonds with g, translated to rna it's UCG.
