How many abnormal gametes are produced if there is a nondisjunction in Meiosis I?  Briefly explain how this happens. How do I know it is four abnormal gametes? And if the no disfunction happen in Meiosis II

What can be concluded about the severity of nondisjunction that occurs in meiosis I as opposed to meiosis II?

Identify the stages of meiosis described by the following meiotic events/conditions/terms. Write prophase I, metaphase I, anaphase I, telophase I, prophase II, metaphase II, anaphase II, or telophase II. In case the events are found in both stages, write the stages both.   1. Formation of chiasma 2. Each chromatid is considered as full-fledged chromosome. 3. Chromosomes begin to pair off. 4. Spindle microtubules start to attach to the centromere. 5. Tetrads are aligned at the middle of the cell. 6. The sister chromatids separate. 7. Produce 2 haploid daughter cells.  8. The chromosomes line up at the middle of the cell.  9. The sister chromatids move together to the opposite poles. 10. The chromatids reach the poles. 11. The chromosomes in each daughter cell are still duplicated.12. Spindle microtubules attach in the centromere of each haploid daughter cell. 13.

Meiotic nondisjunction usually occurs during meiosis I. What isnot separating properly: bivalents or sister chromatids? What is notseparating properly during mitotic nondisjunction?

Shown below is a photomicrograph of Rhoeo tradescantia cell undergoing meiosis. Answer the following question for the photomicrograph: a. Identify the cytogenetic abnormality observed (ex. ring, chain, laggard, bridge) b. Identify the meiotic stage in which these aberrations are observed (as shown in the photomicrograph) c. Explain how these aberrations are formed d. Will this result to sterile or fertile gametes? Explain.

Will meiosis II still proceed if normal division doesn't occur in meiosis I? Why?

Using the images of meiosis found in this microscope image of meiosis, create a biological drawing for any two stages of meiosis (prophase I or II, metaphase I or II, anaphase I or II, or telophase I or II). Both cells should be included in the same drawing.

A cat germ cell has a haploid number of 19 chromosomes.Complete the following table by stating the number of cells, the number of chromatids, and the number of chromosomes at the end of each of the following stages of meiosis and mitosis. (Please note this is an emply chart, I'm unsure why it got declined last time because it is not graded)   Meiosis Meiosis Mitosis   Prophase I Telophase I Telophase Number of cells       Number of Chromatids       Number of Chromosomes

Identify the stages of meiosis described by the following meiotic events/conditions/terms. Write prophase I, metaphase I, anaphase I, telophase I, prophase II, metaphase II, anaphase II, or telophase II. In case the events are found in both stages, write the stages both. 1. Separation of homologous chromosome 2. Four haploid daughter cells are formed.

Which stage of meiosis is the image in