Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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All of the following are distinctions between the process of mitosis and meiosis EXCEPT:
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homologous chromosomes in meiotic cells conduct synapsis
meiotic cells produce genetically distinctive cells
meiotic cells go through two cell divisions
meiotic cells have homologous chromosomes where mitotic cells do not
2. A scientist working in an IVF (in vitro fertilization) clinic mistakenly produced a human zygote with 45 chromosomes. What biological process could explain how this happened?
Group of answer choices
failure of an egg to complete meiosis II
failure of the egg nucleus to be fertilized by the sperm
a non-disjunction in meiotic anaphase occurring in either an egg or sperm
incomplete cytokinesis during spermatogenesis after meiosis I
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- Assume that cell does mitosis Assume that cell does meiosis What is the diploid number of chromosomes in this organism? Give the number of chromosomes and the number of DNA molecules per cell present at the stages represented. I tried to solve them, but I'm not sure what I did right and what was wrong. Please correct it for me. See that attached photo.arrow_forwardA cell undergoing division has a haploid chromosome number of 15. Give the numerical value for each of the following: 1. number of chromatids in a cell in metaphase of meiosis II2. number of centromeres in a cell in prophase of meiosis II 3. number of centromeres following cytokinesis of meiosis Iarrow_forwardThe organism you are working with has the following chromosomes. Place the chromosomes of this organism onto the cell below such that the diagram accurately shows a primary meiocyte from this organism in metaphase I of meiosis. Note 1: Only place chromosomes you need. You don't need them all. Note 2: You can place the "Blank Box' image if you don't think you need a chromosome at a particular position. Dashed line - the metaphase plate 1.arrow_forward
- In regards to MEIOSIS, give the order of the following events in terms of chromosome number. Question 8 options: meiosis 2 and cytokinesis a total of four cells, each containing 23 chromosomes one cell containing 46 chromosomes meiosis 1 and cytokinesis one cell containing 92 chromosomes two cells containing 46 chromosomesarrow_forwardPlease draw a one representative cell having 3 pairs of homologous chromosomes in all of the stages: of Mitosis; Meiosis I and Meiosis II. Prophase, Metaphase, Anaphase and Telophase.arrow_forwardChoose the phase of meiosis in column 2 that best matches each event in column 1. one haploid set of replicated chromosomes at each spindle pole genetic recombination events take place shortest stage aligning of bivalents in the center of a spindle one haploid set of unreplicated chromosomes at each spindle pole aligning of monovalents in the…arrow_forward
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