Mitosis.

Mitosis.

• A. Two genetically identical diploid cells
• B. Four genetically different haploid cells
• C. Four haploid cells
• D. One diploid cell and one haploid cell

Answer: (A)

Two genetically identical diploid cells are produced by mitosis. In mitosis, a diploid parent cell duplicates its chromosomes and then divides to form two daughter nuclei that each retain a complete set of chromosomes (2n). Because the process separates sister chromatids and does not reduce chromosome number or promote crossing over, the two daughter cells are genetically identical to the parent (aside from rare new mutations). This is different from meiosis, which yields four haploid, genetically diverse cells due to crossing over and independent assortment. The other options describe outcomes of meiosis or mixed ploidy, not mitosis.

Two genetically identical diploid cells are produced by mitosis. In mitosis, a diploid parent cell duplicates its chromosomes and then divides to form two daughter nuclei that each retain a complete set of chromosomes (2n). Because the process separates sister chromatids and does not reduce chromosome number or promote crossing over, the two daughter cells are genetically identical to the parent (aside from rare new mutations). This is different from meiosis, which yields four haploid, genetically diverse cells due to crossing over and independent assortment. The other options describe outcomes of meiosis or mixed ploidy, not mitosis.