AP BIOLOGY

Detailed explanation-1: -Karyokinesis is used to describe the nuclear division during the cell replication process. The nuclear division occurs during meiosis and mitosis. Here, the DNA replicates and segregates its genetic material. The chromosomes condense and split into sister chromatids.

Detailed explanation-2: -Mitosis. Nuclear division, mitosis, which takes place during the process of vegetative reproduction, ensures the division of genetic material between the two newly formed cells.

Detailed explanation-3: -Nuclear divisions occur in both mitosis and meiosis. In mitosis, the result is the division of duplicated copies of genome into two. In meiosis, nuclear division occurs twice, dividing the originally single nucleus into four nuclei that are genetically different from one another.

Detailed explanation-4: -Mitosis is the process of nuclear division, which occurs just prior to cell division, or cytokinesis. During this multistep process, cell chromosomes condense and the spindle assembles.