4. Nondisjunction occurs during meiosis in a marabara with the following genotype: purply, /pur*.a.Assume nondisjunction occurs during Meiosis I, diagram out meiosis in the cells at the stages shownbelow for this situation. Be sure to correctly show and label chromosomes vs chromatids, theirgenotypes, centromeres, the synaptonemal complex, and spindle at metaphase.жProphase IMetaphase IAnaphase ITelophase IMetaphase IIAnaphase IITelophase II

Diagram: Key Labels:Chromosome: A single unit of DNA and protein.Chromatid: One of the two…

Answered: 4. Nondisjunction occurs during meiosis…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Based on the attached image, identify the stage at which each cell is in and draw an animal cell with a diploid chromosome number of 6. Indicate maternally- & paternally-derived chromosomes as red and blue, respectively, in your diagram. You do not need to indicate any crossing over. Be sure to include any of the indicated labels. On your diagram, indicate the # of chromosomes and # of homologous pairs in the stage of meiosis I (attached image), whether they are duplicated or not, and whether the cell has an n, 2n, or 4n complement of chromosomes. Also label homologous chromosomes, nonsister chromatids, and kinetochore microtubules.
6) The plant Haplepoppus gracilis is diploid (2n = 4). Inside each cell (represented here by the oval) there are four total chromosomes: one long pair (represented by "A" and "a") and one short pair (represented by "B" and “b"). The following diagrams represent possible anaphases of this cell during meiosis or mitosis. The lines represent chromosomes/chromatids being pulled to either the north or south pole of the cell, and the vertex of each "V" represent the centromere which would be attached to kinetochore microtubules. For representative cells 1– 12, say if the diagram represents a cell in anaphase I of meiosis I, anaphase II of meiosis II, anaphase of mitosis, or shows an impossible situation. If the situation is impossible, explain why. い。 VA Vb VA VB VV. V b Va VB VAVA Vo VB ^^ ^ が VaVA Vo VB くs
Match the phases of meiosis with the correct description Metaphase I [ Choose ] [Choose ] Sister chromatids line up along the center of the cell. Cytokinesis produces four unique daughter cells, spindle dissolve, and the nuclear envelope reappears. Spindle fibers pull homologous pairs of chromosomes apart. Nuclear envelopes of daughter cells dissolve, and chromosomes condense. Spindle fibers pull sister chromatids apart. Homologous pairs of chromosomes line up at the center of the cell in tetrads. Cytokinesis produces two daughter cells, spindle dissolves, and nuclear envelope reappears. Nuclear envelope dissolves, DNA condenses and crossing over occurs. Anaphase II Prophase I Telophase I [Choose ] Prophase II [ Choose ] Telophase II [ Choose ] Anaphase I [ Choose ] Metaphase II [ Choose ] > > >
Match each box to one of the descriptions
Focus on drawing the cell nucleus taking care to model the number and location of chromosomes. Although the chromosomes are only visible in each stage, draw them in all stages for clarity sake. (There needs to be a model drawing) What would a 2n=10 cell look like during prophase I? What would that cell look like during metaphase I? At the end of meiosis I? During metaphase II? At the end of meiosis II?
The mosquito, Aedes aegypti, has 3 bivalents (homologous pairs) formed at Meiosis I. How many chromosomes and chromatin strands are present in each of the following stages:
3 6 points A diploid cell in G1 of interphase has eight chromosomes. How many chromosomes and DNA molecules will be found per cell when this original cell progresses to the following stages? Complete the table below. Anaphase II G1 of interphase G2 of interphase- Telophase 1 (after cytokinesis) Anaphase I S 8 chromosomes/cell and 8 DNA molecules/cell 8 chromosomes/cell and 16 DNA molecules/cell 8 chromosomes/cell and 8 DNA molecules/cell 8 chromosomes/cell and 16 DNA molecules/cell 8 chromosomes/cell and 16 DNA molecules/cell Prophase II Telophase II (after cytokinesis) Metaphase I Metaphase II 8 chromosomes/cell and 16 DNA molecules/cell 4 chromosomes/cell and 8 DNA molecules/cell
A chromosome that was involved in a reciprocal translocation alsohas an inversion. In addition, the cell contains two normalchromosomes.Make a drawing that shows how these chromosomes will pair duringmetaphase of meiosis I.

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