Meiosis I:
Correct answer: C. Diplotene
- A. Rapid division
- B. Cell cleavage
- C. Diplotene
- D. G1 phase
Explanation
Diplotene occurs in meiosis to ensure that homologous chromosomes remain attached via chiasmata, allowing for genetic recombination. During this stage, the synaptonemal complex dissolves, allowing the paired chromosomes to begin to separate while still connected at crossover points. This separation prepares the chromosomes for the subsequent stages of meiosis, ensuring proper segregation of genetic material into gametes.
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Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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