AP BIOLOGY

Detailed explanation-1: -There are two divisions in meiosis; the first division is meiosis I: the number of cells is doubled but the number of chromosomes is not. This results in 1/2 as many chromosomes per cell. The second division is meiosis II: this division is like mitosis; the number of chromosomes does not get reduced.

Detailed explanation-2: -The Meiosis Cell Cycle Meiosis has two cycles of cell division, conveniently called Meiosis I and Meiosis II. Meiosis I halves the number of chromosomes and is also when crossing over happens. Meiosis II halves the amount of genetic information in each chromosome of each cell.

Detailed explanation-3: -From LM: Q1 = Cells undergoing mieosis require 2 sets of divisions because only half of the cromosomes from each parent are needed. This is so half of the offspring’s genes come from each parent. This process generates the diversity of all sexually reproducing organisms. Meiosis produces sex cells eggs and sperm.

Detailed explanation-4: -Two divisions, meiosis I and meiosis II, are required to produce gametes (Figure 3). Meiosis I is a unique cell division that occurs only in germ cells; meiosis II is similar to a mitotic division.

Detailed explanation-5: -Mitosis involves one cell division, whereas meiosis involves two cell divisions.