Question

which is required for sexual reproduction?
mitosis
binary fission
diploid cell production
meiosis

Explanation:

To determine what's required for sexual reproduction, we analyze each option:

• Mitosis is for cell growth/repair, not unique to sexual reproduction.
• Binary fission is asexual (e.g., bacteria), so not for sexual.
• Diploid cell production can happen in mitosis (asexual contexts too), not specific to sexual.
• Meiosis produces haploid gametes (sperm/egg), essential for sexual reproduction (fusion of gametes to form diploid zygote).

Answer:

D. meiosis (assuming the last option is labeled D; if labels are A - D as A.mitosis, B.binary fission, C.diploid cell production, D.meiosis, then the answer is D. meiosis)