Question

what process is responsible for genetic variation?
mitosis
replication
splicing
meiosis

Explanation:

Meiosis is a type of cell division that reduces the chromosome number by half, creating four gamete cells. During meiosis, crossing - over occurs (exchange of genetic material between homologous chromosomes) and independent assortment (random distribution of chromosomes). These processes lead to genetic variation. Mitosis produces genetically identical cells. Replication is the process of copying DNA. Splicing is a part of RNA processing.

Answer:

meiosis