Concepts of Genetics (12th Edition)
12th Edition
ISBN: 9780134604718
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino, Darrell Killian
Publisher: PEARSON
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Chapter 2, Problem 10PDQ
Define and discuss these terms: (a) synapsis, (b) bivalents, (c) chiasmata, (d) crossing over, (e) chromomeres, (f) sister chromatids, (g) tetrads, (h) dyads, (i) monads.
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Students have asked these similar questions
28. The physical structure that is formed when two chromatids cross over is called
a(n)
A) synaptomenal complex
B) bivalent
C) karyotype
D) chiasmado
How many sets of chromosome do each of the following types of cell have?
a) Diploid cell
b) Haploid cell
c). polyploid cell
d) Gametes
Human cells normally have 46 chromosomes. For each of the following stages, state the number of chromosomes present in the particular cell.a) metaphase of mitosisb) metaphase I of meiosis
c) telophase of mitosisd) telophase I of meiosis
e) telophase II of meiosis
(Remember that a pair of attached chromatids count as one chromosome.)
Chapter 2 Solutions
Concepts of Genetics (12th Edition)
Ch. 2 - With the initial appearance of the feature we call...Ch. 2 - An organism has a diploid number of 16 in a...Ch. 2 - Examine Figure 2.12, which shows oogenesis in...Ch. 2 - Over a period of two years, a man in his early 20s...Ch. 2 - Over a period of two years, a man in his early 20s...Ch. 2 - Over a period of two years, a man in his early 20s...Ch. 2 - In this chapter, we focused on how chromosomes are...Ch. 2 - Review the Chapter Concepts list on page 14. All...Ch. 2 - What role do the following cellular components...Ch. 2 - Discuss the concepts of homologous chromosomes,...
Ch. 2 - If two chromosomes of a species are the same...Ch. 2 - Describe the events that characterize each stage...Ch. 2 - How are chromosomes named on the basis of their...Ch. 2 - Contrast telophase in plant and animal mitosis.Ch. 2 - Describe the phases of the cell cycle and the...Ch. 2 - Define and discuss these terms: (a) synapsis, (b)...Ch. 2 - Contrast the genetic content and the origin of...Ch. 2 - Given the end results of the two types of...Ch. 2 - Contrast spermatogenesis and oogenesis. What is...Ch. 2 - Explain why meiosis leads to significant genetic...Ch. 2 - A diploid cell contains three pairs of homologous...Ch. 2 - Considering Problem 15, predict the number of...Ch. 2 - During oogenesis in an animal species with a...Ch. 2 - What is the probability that, in an organism with...Ch. 2 - The nuclear DNA content of a single sperm cell in...Ch. 2 - Describe the role of meiosis in the life cycle of...Ch. 2 - Contrast the chromatin fiber with the mitotic...Ch. 2 - Describe the folded-fiber model of the mitotic...Ch. 2 - Prob. 23PDQCh. 2 - If one follows 50 primary oocytes in an animal...Ch. 2 - In mitosis, what chromatid combination(s) will be...Ch. 2 - During meiosis I, assuming no crossing over, what...Ch. 2 - Are there any possible combinations present during...Ch. 2 - Draw all possible combinations of chromatids...Ch. 2 - Assume that during meiosis I none of the C...Ch. 2 - Assume that each gamete resulting from Problem 29...Ch. 2 - A species of cereal rye (Secale cereale) has a...Ch. 2 - An interesting procedure has been applied for...Ch. 2 - Assume that you were examining a first polar body...Ch. 2 - Kuliev and Verlinsky (2004) state that there was a...
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- Which of the following are differences between mitosis and meiosis I? CHOOSE ALL THAT APPLY. A) Crossing over occurs during meiosis I but not during mitosis B) DNA replication takes place prior to mitosis, but not before meiosis I C) Sister chromatids separate in mitosis, and homologs separate in meiosis I D) Only meiosis I results in daughter cells that contain identical genetic information E) Meiosis I results in two daughter cells, while mitosis results in four daughter cellsarrow_forwardFor every one cell that goes through meiosis I and meiosis I| a)four haploid sperm or four haploid eggs are produced. b)four haploid sperm or one haploid egg are produced. c)four haploid sperm or one diploid egg are produced. d)two diploid sperm or two diploid eggs are producedarrow_forward22arrow_forward
- 4) What is occurring during the Anaphase stage of mitosis, such as is shown in the figure to the right? A) The DNA is being replicated. B) The homologous chromosomes are separating. C) Sister chromatids are being pulled to opposite poles. D) A cleavage furrow is forming to divide the cell. Inid parents made gametes usingarrow_forwardThis form of cell division involves segregation of sister chromatids. (Choose one answer.) O A) mitosis only O B) meiosis only C) both mitosis and meiosis D) neither mitosis or or meiosis CS Scanned with CamScannerarrow_forwardIn a diploid cell, two homologous chromosomes are: A) similar , but from two different species B) mirror images of each other C) similar, but from two different people D) identical to each other E) copies of each otherarrow_forward
- A cell in G1 of interphase has 12 chromosomes. How many chromosomes and DNA molecules (chromatids) will be found per cell when this original cell progresses to the following stages? a) G2 of interphaseb) Metaphase I of meiosisc) Prophase of mitosisd) Prophase II of meiosise) After cytokinesis following mitosis f) After cytokinesis following meiosisarrow_forward1) What is the size of the following single-stranded piece of DNA? ATCGTGTGCT A) 10 b B) 20 bp C) 20 b 2) Mitosis is to cytokinesis as Meiosis is to: A) Cell plate B) Interkinesis C) Metaphase-1 3) During cell division, DNA synthesis and replication does not take place at the beginning of: A) Mitosis B) Meiosis-II 4) What is the size of the following single-stranded piece of RNA? AUCGUGUGCU A) 10 bp B) 10 b| C) 20 bparrow_forwardThis form of cell division is possible for a parent cell that is a somatic cell. (Choose one answer.) O A) mitosis only O B) meiosis only O C) both mitosis and meiosis D) neither mitosis or or meiosis CS Scanned with CamScannerarrow_forward
- In a diploid cell in which 2n = 14, how many telomeresare there in each of the following phases of the cellcycle?(a) G1 (c) prophase of mitosis(b) G2 (d) telophase of mitosisarrow_forwardWhat is the major difference between mitosis and meiosis I in a diploid organism? A) Sister chromatids separate in mitosis; homologous pairs of chromosomes separate in meiosis I. B) Sister chromatids separate in mitosis; homologous pairs of chromosomes separate in meiosis II. C) DNA replication takes place prior to mitosis, but not before meiosis I. D) Only meiosis I results in daughter cells that contain identical genetic information.arrow_forwardCan be more than one answer: Select all of the following that are true of MEIOSIS but not of MITOSIS. a) cell division occurs during cytokinesis b) results in two identical daughter cells c) halves the number of chromosomes in a cell d) spindle fibers contract during anaphase e) tetrads line up on metaphase platearrow_forward
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