What is Life? A Guide to Biology with Physiology
3rd Edition
ISBN: 9781464157745
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 6, Problem 9MC
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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
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 6 Solutions
What is Life? A Guide to Biology with Physiology
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Ch. 6 - Prob. 11SACh. 6 - Prob. 12SACh. 6 - Prob. 13SACh. 6 - Prob. 14SACh. 6 - Prob. 15SACh. 6 - Prob. 16SACh. 6 - Prob. 17SACh. 6 - Prob. 1MCCh. 6 - Prob. 2MCCh. 6 - Prob. 3MCCh. 6 - Prob. 4MCCh. 6 - Prob. 5MCCh. 6 - Prob. 6MCCh. 6 - Prob. 7MCCh. 6 - Prob. 8MCCh. 6 - Prob. 9MCCh. 6 - Prob. 10MCCh. 6 - Prob. 11MCCh. 6 - Prob. 12MCCh. 6 - Prob. 13MCCh. 6 - Prob. 14MCCh. 6 - Prob. 15MCCh. 6 - Prob. 16MCCh. 6 - Prob. 17MC
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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_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_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
- Salient 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_forwardAt the metaphase plate during metaphase I of meiosis, there are Select one: A. Unpaired duplicated chromosomes. B. Chromosomes consisting of one chromatid. C. Bivalents. D. Pairs of sister chromosomes.arrow_forwardAt 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_forward
- Which 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_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_forwardFor the following events, specify whether they occur during mitosis, meiosis I, or meiosis II:A. Separation of conjoined chromatids within a pair of sisterchromatidsB. Pairing of homologous chromosomesC. Alignment of chromatids along the metaphase plateD. Attachment of sister chromatids to both polesarrow_forward
- Which 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_forwardHuman cells normally have 46 chromosomes. For eachof the following stages, state the number of nuclear DNAmolecules present in a human cell:a. Metaphase of mitosisb. Metaphase I of meiosisc. Telophase of mitosisd. Telophase I of meiosise. Telophase II of meiosisarrow_forwardDescribe the similarities and differences between mitosis and meiosis. Discuss at least two similarities and two differences. (Be sure to include the specific information about both processes for each comparison -- for instance, if you identify something about number of chromosomes, be sure to identify that number for both processes, whether or not it’s the same.)arrow_forward
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