19 Down syndrome is a genetic disorder caused by the
presence of an extra chromosome in the body cells of
humans. This extra chromosome occurs in a gamete as a
result of
(1) an error in the process of cloning
(2) an error in meiotic cell division
(3) a gene mutation
(4) replication of a single chromosome during mitosis

it is prolly d and c and f

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.