HUMAN HEREDITY (LL)-W/MINDTAP ACCESS
11th Edition
ISBN: 9781305717022
Author: Cummings
Publisher: CENGAGE L
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Chapter 2, Problem 21QP
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.
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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 ovaries
Which of the following is a TRUE statement regarding the outcome of meiosis?
A.
In meiosis, one diploid cell (2n) can produce 2 haploid cells in males (1n).
B.
In meiosis, four haploid cells (1n) can produce 2 diploid cells (2n) in males.
C.
In meiosis, one diploid cell (2n) can produce up to 4 haploid cells (1n) in males.
D.
In meiosis, one diploid cell (2n) can produce 2 diploid cells (2n) in females.
An individual can have an abnormal number of chromosomes as a result of nondisjunction. Identify the following example of nondisjunction that results in an abnormal number of chromosomes.
A. Sister chromatids do not separate in meiosis II.
B. Homologous chromosomes move apart appropriately during meiosis I.
C. Mitosis occurs normally during embryonic development.
D. Two normal gametes fuse during fertilization.
Chapter 2 Solutions
HUMAN HEREDITY (LL)-W/MINDTAP ACCESS
Ch. 2 - Prob. 1CSCh. 2 - Prob. 2CSCh. 2 - Prob. 3CSCh. 2 - Cell Structure Reflects Function What advantages...Ch. 2 - Assign a function(s) to the following cellular...Ch. 2 - How many autosomes are present in a body cell of a...Ch. 2 - Define the following terms: a. chromosome b....Ch. 2 - Human haploid gametes (sperm and eggs) contain: a....Ch. 2 - Prob. 6QPCh. 2 - Prob. 7QP
Ch. 2 - In the cell cycle, at which stages do two...Ch. 2 - Does the cell cycle refer to mitosis as well as...Ch. 2 - It is possible that an alternative mechanism for...Ch. 2 - Identify the stages of mitosis, and describe the...Ch. 2 - Why is cell furrowing important in cell division?...Ch. 2 - A cell from a human female has just undergone...Ch. 2 - During which phases of the mitotic cycle would the...Ch. 2 - Describe the critical events of mitosis that are...Ch. 2 - Mitosis occurs daily in a human being. What type...Ch. 2 - Speculate on how the Hayflick limit may lead to...Ch. 2 - How can errors in the cell cycle lead to cancer in...Ch. 2 - List the differences between mitosis and meiosis...Ch. 2 - In the following diagram, designate each daughter...Ch. 2 - Which of the following statements is not true in...Ch. 2 - Match the phase of cell division with the...Ch. 2 - A cell has a diploid number of 6 (2n = 6). a. Draw...Ch. 2 - A cell (2n = 4) has undergone cell division....Ch. 2 - We are following the progress of human chromosome...Ch. 2 - What is physically exchanged during crossing over?Ch. 2 - Compare meiotic anaphase I with meiotic anaphase...Ch. 2 - Provide two reasons why meiosis leads to genetic...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following statements are true regarding homologous pairs of chromosomes? Select all that apply. A. They are the same size B. Their prescence indicates a cell is a diploid C. They are identical copies of one another D. One of the homologous chromosomes in a set is synthesized during S phase E. They line up next to each other during metaphase I of meiosis F. They are separated in anaphase I of meiosisarrow_forwardHow would each of the following events affect the outcome of mitosis or meiosis? a. Mitotic cohesin fails to form early in mitosis. b. Shugoshin is absent during meiosis. c. Shugoshin does not break down after anaphase I of meiosis. d. Separase is defective.arrow_forwardA 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_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_forward1)Discusses why Meiosis I is referred to as reduction division and why Meiosis II is essentially like Mitosis. 2)Discusses where problems are likely to occur in Meiosis and what these problems could lead to.arrow_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_forward
- Separation of homologous chromosomes during Meiosis I requires: Select one: a. Removing centromere cohesion b. Nondisjunction c. Separase If nondisjunction occurred during Meiosis II: Select one: a. We assume all other meiotic events occurred normally b. All four gametes will be abnormal c. There is a higher risk that a second nondisjunction event occurredarrow_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_forwardA diploid male organism has two homologous chromosomes. A and B are from its maternal parent, while A’ and B’ are from its paternal parent. Draw the chromosomes at the following stages: a, anaphase of mitosis b. anaphase of the first meiotic division c, anaphase of the second meiotic division If the same chromosomes were involved in meiosis in a female, would the kind of egg nuclei produced be different from the sperm nuclei? Why?arrow_forward
- The 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 statements about mitosis and meisois are TRUE? (check all that apply) Mitosis produces genetically identical cells, whereas meiosis produces genetically variable (different) cells. Mitosis consists of a single nuclear division, whereas meiosis consists of two nuclear divisions. DNA replication occurs prior to mitosis and meiosis I. Crossing over occurs in both meiosis I and meiosis II. The number of chromsoomes in newly formed cells is the same as the mother cell in both mitosis and meiosis. 00000arrow_forwardWhich of the following statements is an incorrect description of the processes of mitosis or meiosis in a diploid organism? Multiple choice (one asnwer is correct) 1.Crossing over of chromosomes takes place in meiosis I but not in mitosis. 2.Sister chromatids separate in mitosis, and homologous chromosomes separate in meiosis II. 3.None of the above 4.Meiosis II occurs in a haploid cell, while mitosis occurs in diploid cells. 5.Homologous chromosomes align on the metaphase plate in meiosis I but not in mitosis.arrow_forward
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