Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
4th Edition
ISBN: 9781319154639
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Chapter 8, Problem 6MC
Summary Introduction
Introduction:
Gamete formation is one of the aspects of sexual reproduction where
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Which of the following is one of the very importantdifferences between mitosis and meiosis?a. Chromosomes align midway between spindle polesonly in meiosis.b. Homologous chromosomes separate only inmeiosis.c. DNA is replicated before mitosis only.d. Sister chromatids separate only in meiosis.e. Interphase occurs only in mitosis.
Using the symbols above:
1. Given: Adult diploid cell (2n = 8)
2. Show the condition of the chromosomes in the following Mitosis phases (illustrate):
a. prophase
b. metaphase
c. anaphase
d. telophase/cytokinesis
Which of the following statements correctly describes the process of mitosis in a diploid cell?Note: a complete set of chromosomes refers to one of each kind of chromosome. A complete set of homologous chromosomes refers to two of each kind of chromosome - one from the mother and one from the father)
Select one:
a. A complete set of homologous chromosomes are divided into each daughter cell so that each new cell gets one set of chromosomes.
b. Cytoplasm and its organelles are equally divided into each daughter cell.
c. A complete set of homologous chromosomes are equally divided into each reproductive cell.
d. DNA and cytoplasm are equally divided into each daughter cell.
Chapter 8 Solutions
Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
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- A 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_forwardGive 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 cytokinesisarrow_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
- A cell has 8 chromosomes in metaphase II of meiosis. How many chromosomes and DNA molecules will be present per cell in this same organism at the following stages? a. Prophase of mitosis b. Metaphase I of meiosis c. Anaphase of mitosis d. Anaphase II of meiosis e. Anaphase I of meiosis f. After cytokinesis that follows mitosis g. After cytokinesis that follows meiosis IIarrow_forwardThe product of meiosis describes the following, except: A. Produces somatic cells B.Genetically distinct from each other. C.Four haploid cells D. Produces gametesarrow_forwardSalient similarities are found in cell divisions. For instance, which phase of meiosis I is most similar to the comparable phase in mitosis? a. none b. Telophase 1 c. Anaphase 1 d. Prophase 1 e. Metaphase 1arrow_forward
- 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 Iarrow_forwardA cell in G1 of interphase has 12 chromosomes (2 n = 12). How many chromosomes and DNA molecules will be found per cell when this original cell progresses to the following stages? a. G2 of interphase b. Metaphase I of meiosis c. Prophase of mitosis d. Anaphase I of meiosis e. Anaphase II of meiosis f. Prophase II of meiosis g. After cytokinesis following mitosis h. After cytokinesis following meiosis IIarrow_forwardWhich of the following is the primary difference between mitosis and meiosis? A. Meiosis occurs in somatic cells, whereas mitosis is only used to produce germ cells. B. Mitosis occurs in somatic cells, whereas meiosis is only used to produce germ cells. C. Meiosis always occurs much more quickly than mitosis. D. Only meiosis includes a separation division step, which occurs during Meiosis I.arrow_forward
- At the metaphase plate during metaphase I of meiosis, there are Select one: A. Chromosomes consisting of one chromatid. B. Unpaired duplicated chromosomes. O C. Bivalents. D. Pairs of sister chromosomes.arrow_forwardGametes contain one of each kind of chromosome because Select one: A. The homologous chromosomes separate during meiosis. B. Crossing-over occurs during prophase I. C. Only one replication of DNA occurs during meiosis. D. The chromatids separate during meiosis.arrow_forwardWhich of the following statements are True? There may be more than one answer. Select one or more: a. Mitosis results in 2 haploid cells O b. If a parent cell with 10 chromosomes undergoes mitosis, each offspring cell will have 10 chromosomes O c. At the start of meiosis, a human cell will have 46 chromosomes and 92 chromatids d. The purpose of mitosis is the production of gametes e. In Meiosis, crossing over occurs during Meiosis II f. Meiosis only occurs in the testes and ovariesarrow_forward
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