Question

question 1-11
which of the following best describes cell division in eukaryotic organisms?
eukaryotic organisms use meiosis for reproduction and growth/repair.
eukaryotic organisms use mitosis for reproduction and growth/repair.
eukaryotic organisms use mitosis for growth/repair and meiosis for sexual reproduction.
eukaryotic organisms use meiosis for growth/repair and mitosis for sexual reproduction.

Explanation:

To solve this, we recall the roles of mitosis and meiosis in eukaryotes:

• Mitosis produces identical daughter cells, used for growth, repair, and asexual reproduction.
• Meiosis produces haploid gametes, used for sexual reproduction.

Now we analyze each option:

1. First option: Meiosis is not used for growth/repair (it's for sexual reproduction), so this is incorrect.
2. Second option: Mitosis is not the primary method for sexual reproduction (meiosis is), so this is incorrect.
3. Third option: Mitosis for growth/repair and meiosis for sexual reproduction matches their roles. This is correct.
4. Fourth option: This swaps the roles of mitosis and meiosis, so it's incorrect.

Answer:

C. Eukaryotic organisms use mitosis for growth/repair and meiosis for sexual reproduction. (Note: Assuming the options are labeled A, B, C, D in order, the third option is the correct one.)