If a human cell has more or less than the correct number of chromosomes, the likely results are:
a. It can cause mutations in the DNA of the human.
c. It can result in humans not being able to reproduce.
Chromosomal abnormalities, such as aneuploidies (gaining or losing chromosomes), can lead to various issues, including developmental disorders and infertility. Options b, d, and e are not directly relevant to the effects of having an incorrect number of chromosomes.