Answer:
hope this helps
Explanation:
About 95 percent of the time, Down syndrome is caused by trisomy 21 — the person has three copies of chromosome 21, instead of the usual two copies, in all cells. This is caused by abnormal cell division during the development of the sperm cell or the egg cell.
That is not the correct answer
A is the answer
hope it helps
Maybe it’s because in order the get the same apple you breed more of that apple? It would take less time than natural selection since the genes of that certain apple may not appear for a few generations. If this makes any sense let me know because I’m just as confused as you are.
