Question

20. How many cells are formed at the end of Meiosis I & how many copies of chromosomes does each cell have?_ 21. Is DNA copied before Meiosis II? _ 22. How many cells form at the end of Meiosis II and how many chromosomes do they contain? • 23. Oogenesis ultimately gives rise to (one ovum, four ova) with the Chaploid, diploid) number of chromosomes. 24. A sperm cell is a (gamete, zygote), and is (haploid, diploid). 25. When a sperm cell and an ovum merge, they undergo the process of fertilization, and give rise to a (gamete, zygote), which is (haploid, diploid). 26. A hypothetical organism has 10 chromosomes for each of its body cells (somatic cells). a. Skin cells are continuously being rubbed off and replaced. How many chromosomes will be contained in each new skin cell that is replaced? _ b. This replacement occurs through the process of _- c. The diploid number (2N) for this organism is _ d. This organism would have how many homologous pairs of chromosomes? _ e. The female of this organism has an ovary. The number of chromosomes in each of the cells that make up the ovary would be f. The mature eggs of this female would contain how many chromosomes?

Answer 1

20. End of meiosis-I, 2 cells are formed , and each cell have 2 copy of each chromosome.

21. Dna are copying before meiosis-II in S phase of meiosis- I

22. End of meiosis II 4 CELL are produce from.mother cell and each have single copy of dna .

23. In chromosome number in ovum is 23 . And it is haploid.

24. Sperm is haploid have 23 chromosome.

25. Zygote is diploid .And single cell structure

26.