Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Phases of meiosis
Anaphase I
a) Homologous pairs separate.
b ) Chromosomes are still double.
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- Construct a table for the different stages of meiosis, giving the number of chromosomes per cell and the number of DNA molecules per cell for a cell that begins with 4 chromosomes (two homologous pairs) in G1. Include the following stages in your table: G1, S, G2, prophase I, metaphase I, anaphase I, telophase I (after cytokinesis), prophase II, metaphase II, anaphase II, and telophase II (after cytokinesis).arrow_forwardCompare and contrast phases of meiosis I with phases of meiosis II in terms of the events taking place and the behaviour of chromosomes.arrow_forwardWhich of the following would have the shortest p arm of the chromosome? A) acrocentic B) metacentric C) submetacentric D) all of the answers would be equalarrow_forward
- 1) Name each stage of mitosis in the following diagram: D 2) Name each stage of meiosis in the following diagram: 2. 3. 5. 7.arrow_forwardWhat went wrong during meiosis of the parent cell on the left? a) nondisjunction during meiosis I b) nothing went wrong c) nondisjunction during meiosis II d) monosomy during meiosis II e) trisomy during meiosis Iarrow_forwardwhich of these could lead to the mistake evident in the karyotype? A) a failure of cytokinesis after meiosis I in gamete formation B) a nondisjunction in meiosis II in gamete formation C) crossing over in meiosis ! in gamete formation D) fertilizaton by two sperm in zygote formationarrow_forward
- 4) What is occurring during the Anaphase stage of mitosis, such as is shown in the figure to the right? A) The DNA is being replicated. B) The homologous chromosomes are separating. C) Sister chromatids are being pulled to opposite poles. D) A cleavage furrow is forming to divide the cell. Inid parents made gametes usingarrow_forwardWhat processes contribute to genetic diversity in meiosis? Describe in detail the event that occurs in prophase I.arrow_forwardWhat is the purpose of meiosis? In other words, why create haploid cells?arrow_forward
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