In which step of prophase I does crossing-over occur?
9. Mitosis and Meiosis
Meiosis
- Multiple Choice
- Multiple Choice
Are the two daughter cells produced from meiosis I diploid or haploid?
- Multiple Choice
Are the four daughter cells produced from meiosis II diploid or haploid?
- Multiple Choice
Which of the following are sources of genetic variation during meiosis?
- Multiple Choice
During which stage of meiosis do sister chromatids separate?
- Open QuestionWrite a short essay that contrasts mitosis and meiosis, including their respective roles in organisms, the mechanisms by which they achieve their respective outcomes, and the consequences should either process fail to be executed with absolute fidelity.
- Open Question
Our closest primate relative, the chimpanzee, has a diploid number of 2n =48. For each of the following stages of M phase, identify the number of chromosomes present in each cell.
early prophase I - Open Question
Our closest primate relative, the chimpanzee, has a diploid number of 2n =48. For each of the following stages of M phase, identify the number of chromosomes present in each cell.
end of meiotic anaphase II - Open Question
Our closest primate relative, the chimpanzee, has a diploid number of 2n =48. For each of the following stages of M phase, identify the number of chromosomes present in each cell.
meiotic metaphase I - Open Question
Cohesion between sister chromatids, as well as tension created by the pull of kinetochore microtubules, is essential to ensure efficient separation of chromatids at mitotic anaphase or in meiotic anaphase II. Explain why sister chromatid cohesion is important, and discuss the role of the proteins cohesin and separase in sister chromatid separation.