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Oogenesis
The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.
Cell Division
Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:
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- The pairing of homologous chromosomes occurs during which ofthe following?a. mitosisb. meiosis Ic. meiosis IId. All of these are correct.The final outcome of meiosis in the ovaries results in: a. Three functional gametes b. the formation of two identical daughter cells c. two functional gametes d. four functional gametes e. one functional gameteWhat is the significant events of the stages in Meiosis? (explain in 2-3 sentences)a. Prophase Ib. Metaphase Ic. Anaphase Id. Telophase Ie. Prophase IIf. Metaphase IIg. Anaphase IIh. Telophase II
- Which of the following cells canundergo meiosis?a. the diploid body cells of an animalb. haploid gametesc. germ cellsThe product of meiosis describes the following, except: A. Produces somatic cells B.Genetically distinct from each other. C.Four haploid cells D. Produces gametesChoose the best matching phrase in the right columnfor each of the terms in the left column.a. meiosis 1. X and Yb. gametes 2. chromosomes that do not differbetween the sexesc. karyotype 3. one of the two identical halvesof a replicated chromosomed. mitosis 4. microtubule organizing centersat the spindle polese. interphase 5. cells in the testes that undergomeiosisf. syncytium 6. division of the cytoplasmg. synapsis 7. haploid germ cells that uniteat fertilizationh. sex chromosomes 8. an animal cell containing morethan one nucleusi. cytokinesis 9. pairing of homologouschromosomesj. anaphase 10. one diploid cell gives rise to twodiploid cellsk. chromatid 11. the array of chromosomes in agiven celll. autosomes 12. the part of the cell cycle duringwhich the chromosomes are notvisiblem. centromere 13. one diploid cell gives rise to fourhaploid cellsn. centrosomes 14. cell produced by meiosis thatdoes not become a gameteo. polar body 15. the time during mitosis whensister chromatids…
- In what phase of meiosis would you find no chromatids? Group of answer choices A. telophase 2 B. metaphase 1 C. anaphase 1 D. metaphase 2 E. prophase 1The end products of meiosis I are Ca. 2 diploid Cb.2 haploid Cc. 4 haploid cells.2) Name each stage of meiosis in the following diagram: 2. 3. 1. 4. 5. 6. 7. 8.
- Nondisjunction during meiosis I of oogenesis will result in eggs that have Select one: O A. The normal number of chromosomes. B. Only in one less than the normal number of chromosomes. C. Both in one too many and/or one less than the normal number of chromosomes D. Only in one too many chromosomes.Gametes contain one of each kind of chromosome because Select one: O A The homologous chromosomes separate during meiosis. B. Crossing-over occurs during prophase I. C. Only one replication of DNA occurs during meiosis. D. The chromatids separate during meiosis.In which stage of meiosis do homologous chromosomes separate? Group of answer choices A. anaphase II B. anaphase I C. metaphase I D. prophase I E. prophase II
