12 Questions
What is the purpose of meiosis I?
To reduce the number of chromosomes from diploid to haploid
What is the purpose of meiosis II?
To separate chromatids
What is the difference between meiosis I and meiosis II?
Meiosis I reduces the number of chromosomes, while meiosis II separates chromatids
Which cells receive two copies of either the maternal or paternal chromosome in meiosis I?
Daughter cells
What is the result of meiosis in males?
Four identical gametes that develop into functional sperm
What is the result of meiosis in females?
One oocyte and three polar bodies
What happens if fertilization takes place in females?
The oocyte completes meiosis II, yielding an ovum
What is the process of meiosis in males called?
Spermatogenesis
What is the production of female oocytes called?
Oogenesis
What is the term used to describe the uneven distribution of cytoplasm among the four cells produced in meiosis II?
Unequal cytokinesis
What is the term used to describe the separation of maternal and paternal chromosomes in meiosis I?
Reductional division
How many haploid cells are produced in meiosis II?
Four
Study Notes
- Meiosis I begins with prophase I and ends with the separation of maternal and paternal chromosomes.
- In meiosis I, each daughter cell receives two copies of either the maternal or paternal chromosome.
- The first meiotic division is called a reductional division because it reduces the number of chromosomes from diploid to haploid.
- Meiosis II is an equational division that separates chromatids and yields four haploid cells.
- The cytoplasm may not be evenly distributed among the four cells.
- In males, meiosis produces four identical gametes that develop into functional sperm.
- In females, meiosis produces one oocyte and three polar bodies.
- If fertilization takes place, the oocyte completes meiosis II, yielding an ovum.
- Spermatogenesis is the process of meiosis in males.
- Oogenesis is the production of female oocytes.
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