Prophase I of meiosis is different from prophase in mitosis becauseThe homologous chromosomes pair up and crossing over occurs in meiosis notmitosis.The nuclear envelopes do not disappear in meiosis as it does in mitosis.DNA replication occurs and the chromosomes condense in meiosis, but not inmitosis.OHomologous chromosomes are pulled apart in mitosis, but not in meiosis.

Answered: Prophase I of meiosis is different from…

Prophase I of meiosis is different from prophase in mitosis because O The homologous chromosomes pair up and crossing over occurs in meiosis no mitosis. dicannoar in meiosis as it does in mitosis.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter2: Cells And Cell Division

Section: Chapter Questions

Problem 23QP: A cell has a diploid number of 6 (2n = 6). a. Draw the cell in metaphase of meiosis I. b. Draw the...

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Concept explainers

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:

Question

Prophase I of meiosis is different from prophase in mitosis because
The homologous chromosomes pair up and crossing over occurs in meiosis not
mitosis.
The nuclear envelopes do not disappear in meiosis as it does in mitosis.
DNA replication occurs and the chromosomes condense in meiosis, but not in
mitosis.
OHomologous chromosomes are pulled apart in mitosis, but not in meiosis.

Expert Solution

Step 1

Meiosis is associated with crossing over and not with mitosis.

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Which of the following statements is not true in comparing mitosis and meiosis? a. Twice the number of cells are produced in meiosis as in mitosis. b. Meiosis is involved in the production of gametes, unlike mitosis. c. Crossing over occurs in meiosis I but not in meiosis II or mitosis. d. Meiosis and mitosis both produce cells that are genetically identical. e. In both mitosis and meiosis, the parental cell is diploid.
Match the phase of cell division with the following diagrams. In these cells, 2n = 4. a. anaphase of meiosis I b. interphase of mitosis c. metaphase of mitosis d. metaphase of meiosis I e. metaphase of meiosis II
A cell (2n = 4) has undergone cell division. Daughter cells have the following chromosome content. Has this cell undergone mitosis, meiosis I, or meiosis II?
A cell has a diploid number of 6 (2n = 6). a. Draw the cell in metaphase of meiosis I. b. Draw the cell in metaphase of mitosis. c. How many chromosomes are present in a daughter cell after meiosis I? d. How many chromatids are present in a daughter cell after meiosis II? e. How many chromosomes are present in a daughter cell after mitosis? f. How many pairs of homologous chromosomes are visible in the cell in metaphase of meiosis I?
At which stage of meiosis are sister chromatids separated from each other? a. prophase I b. prophase ll c. anaphase I d. anaphase ll
Figure 13.6 Which of the following statements about nondisjunction is true? Nondisjunction only results in gametes with n+1 or n-1 chromosomes. Nondisjunction occurring during meiosis II results in 50 percent normal gametes. Nondisjunction during meiosis I results in 50 percent normal gametes. Nondisjunction always results in four different kinds of gametes.
Figure 6.4 Which of the following is the correct order of events in mitosis? a. Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the initotic spindle. The nucleus re-forms and the cell divides. The sister chromatids separate. b. The kinetochore becomes attached to the mitotic spindle. The sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus re-forms and the cell divides. c. The kinetochore becomes attached to metaphase plate. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus re-forms and the cell divides. d. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. The kinetochore breaks apart and the sister chromatids separate. The nucleus re-forms and the cell divides.
After telophase Il of meiosis, the chromosomal makeup of each daughter cell is: Practia diploid, and the chromosomes are each composed of a single chromatid. O diploid, and the chromosomes are each composed of two chromatids. O haploid, and the chromosomes are each composed of a single chromatid. O haploid, and the chromosomes are each composed of two chromatids.
Metaphase of mitosis differs from metaphase of meiosis I because homologous chromosomes do not interact in meiosis I. homologous chromosomes do not interact in mitosis. metaphase does not occur in meiosis I. sister chromatids are not present in meiosis I.
Which of the following shows differences between chromosome in a cell at metaphase of mitosis with those in a cell at metaphase Il of meiosis? * I The chromosomes in metaphase of mitosis can be diploid but the chromosomes in metaphase II of meiosis always consist of a haploid set. In metaphase of mitosis, sister chromatids of each chromosome are genetically identical but in metaphase II of meiosis sister chromatids are not genetically identical. II III Individual chromosomes line up at the metaphase plate during metaphase of mitosis, but pairs of homologous chromosomes line up at metaphase plate during metaphase II of meiosis. O I and II only O I and II only Il and III only O I, Il and III
Which of the following differentiates meiosis from mitosis? mitosis is used for the repair of cells, whereas meiosis creates cells for sexual reproduction. In mitosis four identical daughter cells are produced, whereas two genetically different cells are produced in meiosis meiosis is a form of asexual division, whereas mitosis is a form of sexual division mitosis occurs in prokaryotic cells, whereas meiosis occurs in eukaryotic cells
All of the following make melosis different from mitosis EXCEPT O chromosome number is reduced by half in melasis. O meiosis comprises two divisions. O pairing of homologous chromosomes usually only occurs melosis. O resulting cells from meiosis are genetically different from the parent cell. O meiosis lacks a preceding S phase