Which of the following best describes the primary outcome of meiosis in sexually reproducing organisms?

• A. Production of two identical diploid daughter cells
• B. Production of four genetically unique haploid gametes
• C. Formation of four identical haploid cells
• D. Replication of DNA without cell division

Answer: (B)

Verified step by step guidance

1. Understand the purpose of meiosis: Meiosis is a specialized type of cell division that occurs in sexually reproducing organisms to produce gametes (sperm and egg cells). Its primary goal is to reduce the chromosome number by half, creating haploid cells from diploid cells.
2. Recognize the key difference between meiosis and mitosis: Unlike mitosis, which produces two identical diploid daughter cells, meiosis results in four genetically unique haploid cells due to processes like crossing over and independent assortment.
3. Analyze the stages of meiosis: Meiosis consists of two rounds of division, Meiosis I and Meiosis II. Meiosis I separates homologous chromosomes, reducing the chromosome number, while Meiosis II separates sister chromatids, similar to mitosis.
4. Understand genetic variation: During Meiosis I, crossing over (exchange of genetic material between homologous chromosomes) and independent assortment (random distribution of maternal and paternal chromosomes) contribute to the genetic uniqueness of the resulting gametes.
5. Evaluate the options provided: Based on the purpose and outcomes of meiosis, the correct description is 'Production of four genetically unique haploid gametes,' as this aligns with the biological function of meiosis in sexually reproducing organisms.