Final answer:
The statement is false; meiosis occurs only in reproductive cells to produce haploid gametes and happens less frequently than mitosis, which occurs in somatic cells throughout the body for growth and repair.
Step-by-step explanation:
The statement that meiosis occurs more often than mitosis in all cells of a human being is false. Meiosis is a specialized form of cell division that only occurs in the reproductive organs, specifically in the testes and ovaries, for the production of gametes (sperm and eggs). These cells are haploid, meaning they contain half the number of chromosomes of the parent cell. Meiosis produces four genetically distinct daughter cells with half the chromosome number of the original cell, leading to genetic diversity. On the other hand, mitosis occurs throughout the body in somatic (non-reproductive) cells for growth, maintenance, and repair. It results in the production of two daughter cells that are identical to the parent cell and to each other, each with the same number of chromosomes as the parent cell, known as diploid cells.
Reviewing specifics: Human sperm are indeed haploid (true), sister chromatids separate from each other during meiosis II (false for meiosis I), a single cell going through meiosis will produce four cells, and crossing over occurs during prophase I of meiosis, which is not present in mitosis.