BIOLOGY VOL. II
16th Edition
ISBN: 9781308795317
Author: Raven
Publisher: Mcgraw-Hill/Create
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Textbook Question
Chapter 11, Problem 5U
During anaphase I
a. sister chromatids separate and move to the poles.
b. homologous chromosomes move to opposite poles.
c. homologous chromosomes align at the middle of the cell.
d. all the chromosomes align independently at the middle of the cell.
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A cell has 8 chromosomes in G1 of interphase. Draw a picture of this cell with its chromosomes at the following stages. Indicate how many DNA molecules are present at each stage. a. Metaphase of mitosis b. Anaphase of mitosis c. Anaphase II of meiosis d. Diplotene of meiosis I
Which of the following occurs during metaphase I?
A. Homologous chromosomes pack tightly, pair up, and swap segments.
B. Homologous chromosome pairs are aligned midway between spindle poles.
C. The spindle separates the homologous chromosomes and moves them toward opposite spindle poles.
D. A complete set of chromosomes cluster at each cell end, and two haploid nuclei are produced.
Give the genetic content © and chromosome number (n) of a diploid cell during the following phases: a. G1 b. S-phase c. G2 d. metaphase e. anaphase f. telophase after cytokinesis
Chapter 11 Solutions
BIOLOGY VOL. II
Ch. 11 - In comparing somatic cells and gametes, somatic...Ch. 11 - What are homologous chromosomes? a. The two halves...Ch. 11 - Chiasmata form a. between homologous chromosomes....Ch. 11 - Crossing over involves each of the following with...Ch. 11 - During anaphase I a. sister chromatids separate...Ch. 11 - At metaphase I the kinetochores of sister...Ch. 11 - What occurs during anaphase of meiosis II? a. The...Ch. 11 - Which of the following does NOT contribute to...Ch. 11 - How does DNA replication differ between mitosis...Ch. 11 - Which of the following is NOT a distinct feature...
Ch. 11 - Which phase of meiosis I is most similar to the...Ch. 11 - Structurally, meiotic cohesins have different...Ch. 11 - Prob. 6ACh. 11 - Diagram the process of meiosis for an imaginary...Ch. 11 - Mules are the offspring of the mating of a horse...Ch. 11 - Compare the processes of independent assortment...Ch. 11 - Aneuploid gametes are cells that contain the wrong...
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- Sister chromatids are aligned at the center of the cell during; a. Prophase b. Metaphase O C. Anaphase O d. Telophasearrow_forwardIn a cell cycle Select one: a. DNA is replicated and passed to homologous chromosomes during interphase b. DNA is replicated and passed to daughter cells during mitotic phase c. DNA and RNA are replicated and passed to parent cells during interphase d. DNA and RNA are replicated and passed to sister chromatids during mitotic phasearrow_forwardThe amount of DNA per cell of a particular species is measured in cells found at various stages of meiosis and the following amounts are obtained: 3.7 pg , 7.3 pg , and 14.6 pg. Match the amounts of DNA above with the corresponding stages of the cell cycle. You may use more than one stage for each amount of DNA . A. G2 B. After both telophase II and cytokinesis C. Metaphase IIarrow_forward
- Which of the following stages of meiosis II involves separation and movement of the sister chromatids toward the spindle poles? A. Telophase II B. Metaphase II C. Anaphase II D. Prophase IIarrow_forwardA parent cell divides to form two genetically identical daughter cells in the process of mitosis. For mitosis to take place: A. the parent cell must divide its DNA in half so each daughter cell gets only the genes needed to carry out its functions. In this way, differentiation occurs. B. the parent cell must reproduce its DNA during telophase C. the parent cell must first be fertilized D. the parent cell must replicate its entire genome prior to mitosis E. crossover must be delayed until the second cell divisionarrow_forward1. Mitosis: a. Are the chromosomes at each pole during telophase identical to chromosomes in the original cell (prior to S phase of cell cycle)? b. Are the new daughter cells genetically identical to the original cell? c. Does crossing over occur in mitosis? Explain.arrow_forward
- 29) Anaphase Il is essentially the same as mitotic anaphase except that in anaphase II and in mitotic anaphase D) the cells are haploid and sister chromatids separate... the cells have the same number of chromosomes as the original cell and sister chromatids separate the cells are diploid... the cells are haploid chromosomes line up double file in the middle of the cell.. chromosomes line up single file in the middle of the cell crossing over occurs... crossing over does not occur the cells are haploid and sister chromatids separate... the cells have the same number of chromosomes as the original cell and sister chromatids separatearrow_forwardMatch the following events with the stages in mitosis: chromosomal materials condenses to form compact chromosomes. alignment of chromosomes along the equator or plate with microtubules attached to poles sister chromatids for each chromosome split and move to opposite poles chromosomes are clustered at each of the poles and give way to cytokinesis A. telophase B. anaphase C. metaphase D. prophasearrow_forwardWhich of the following occur during anaphase II of meiosis? Select one: a. The APC adds phosphates to motor proteins causing them to rebuild the nuclear envelope. b. Homologous chromosomes of the tetrad separate and move to opposite poles of the newly dividing cell. c. DNA de-condenses. d. Non-identical (due to recombination) sister chromatids are split, attach to motor proteins, and are moved to separate polesarrow_forward
- Which of the following occurs during metaphase II? A. The chromosomes align midway between spindle poles. B. The sister chromatids separate and move toward the spindle poles. C. Spindle microtubules attach to each sister chromatid as the nuclear envelope breaks up. D. A nuclear envelope forms around each set of chromosomes to form four haploid nuclei.arrow_forwardProphase I in meiosis and Prophase in mitosis have a number of important differences, which of the answers below are one of those differences? a. Prophase I has fewer chromatids than Prophase b. Prophase only occurs in plant cells unlike Prophase I c. Prophase 1 has paired homologous chromosomes which Prophase does not d. Prophase has tetrad/bivalent structures while Prophase I does notarrow_forwardWhich of the following statements is FALSE? A. Centrosomes are anchor points for microtubules and are essential to form the mitotic spindle. B. In the eukaryotic cell cycle the cell spends much more time in the interphase than in the mitotic phase. C. In telophase two nuclear envelopes are fully formed and the cell splits in two via cytokinesis. D. The contraction of the kinetochore microtubules leads to the separation of the sister chromatids during anaphase. E. In the prophase chromatin condenses into X-shaped chromosomes.arrow_forward
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