Multiple Choice
After sperm are produced in the testes of sexually reproducing animals, what is the next step in their journey before fertilization can occur?
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12. Meiosis
Life Cycle of Sexual Reproducers
Multiple Choice
Which of the following is required for sexual reproduction in eukaryotic organisms?
A
Mitosis
B
Meiosis
C
Diploid cell production
D
Binary fission
Verified step by step guidance1
Understand the concept of sexual reproduction in eukaryotic organisms: Sexual reproduction involves the combination of genetic material from two parent organisms to produce offspring with genetic variation.
Recognize the role of meiosis in sexual reproduction: Meiosis is a specialized type of cell division that reduces the chromosome number by half, producing haploid gametes (sperm and egg cells). This is essential for maintaining the correct chromosome number in offspring after fertilization.
Differentiate meiosis from mitosis: Mitosis is a process of cell division that results in two identical diploid cells, primarily for growth and repair, and does not contribute to the production of gametes for sexual reproduction.
Understand why diploid cell production is not directly required for sexual reproduction: While diploid cells are important in the life cycle of eukaryotic organisms, sexual reproduction specifically requires the formation of haploid gametes through meiosis.
Eliminate binary fission as an option: Binary fission is a form of asexual reproduction found in prokaryotic organisms, not eukaryotic organisms, and does not involve meiosis or the combination of genetic material from two parents.
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