How many 'a' alleles are present in Anaphase 1? How many 'F' alleles are present in each cell in Metaphase 1? How many 'f' alleles are present in each cell in Metaphase I1?
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- imagine a giraffe whose diploid is 30. A)Under what circumstances would the giraffe go through a process of meiosis? . b) what will be the final result of this meiosis for the giraffe (# of cells + # of chromosomes/cells)In human spermatogenesis, mitosis of a stem cell gives rise to one cell that remains a stem cell and one cell that becomes a spermatogonium. (a) Draw four rounds of mitosis for a stem cell, and label the daughter cells. (b) For one spermatogonium, draw the cells it would produce from one round of mitosis followed by meiosis. Label the cells, and label mitosis and meiosis. (c) Explain what would happen if stem cells divided like spermatogonia.a. What type of cell division mitosis, meiosis I or meiosis II is shown in this figure? b. What is the diploid number of this organism? c. Provide labels for (i) and (ii)
- A) Hoe many cells are produced by the end of meiosis II? B) Are the cells produced at the end of meiosis II haploid or diploid? C) Are the chromosomes of the four final meiotic products replicated or nonreplicated?a. What phase of Meiosis II is the cell in? How do you know? b. Assuming all of the chromosomes present during Meiosis II are shown in the figure above, how many chromosomes (counting homologous pairs as two chromosomes) does a gamete from this organism have? c. Draw the same cell during the same phase of Meiosis I. Label the elements.imagine a giraffe whose diploid is 30. A) what # of chromosomes will be present in a somatic cell at prophase of mitosis? B) what will be the # of chromosomes present in a somatic cell at prophase 2 of meiosis?
- Which of the four daughter cells shown at right would produce an offspring with trisomy 3 after it is fertilized? A.) A B.) B C.) C D.) DWhat are chromosomal disorders? Also gives a suitable example.Human females have two X chromosomes (XX); males have one X and one Y chromosome (XY). a. With respect to X chromosome alleles, how many different types of gametes can a male produce? b. If a female is homozygous for an allele on an X chromosome, how many types of gametes can she produce with respect to that allele? c. If a female is heterozygous for an X chromosome allele, how many types of gametes can she produce with respect to that allele?
- In meiosis, we talk about the daughter cells having half the chromosomes of the parent cell. Choose the option that best describes what is happening to end up with half the number of chromosomes in the daughter cells. Question 8Answer a. All of the chromosomes are chemically cut in half so the daughter cells get the top or the bottom half of each of the chromosomes. b. Each daughter cell has one chromosome from each of the homologous pairs found in the parent cell. c. Each daughter cells gets a random set of chromosomes that add up to half the number of chromosomes as the parent cells had..Which of the following is a TRUE statement regarding the outcome of meiosis? A. In meiosis, one diploid cell (2n) can produce 2 haploid cells in males (1n). B. In meiosis, four haploid cells (1n) can produce 2 diploid cells (2n) in males. C. In meiosis, one diploid cell (2n) can produce up to 4 haploid cells (1n) in males. D. In meiosis, one diploid cell (2n) can produce 2 diploid cells (2n) in females.How can duplications arise? A. by uneven crossing over during meiotic prophase B. by the loss of a telomere C. by chromosome breakage and exchange of arms D. by spindle failure during chromosome separation