Concepts of Genetics (11th Edition)
Concepts of Genetics (11th Edition)
11th Edition
ISBN: 9780321948915
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino
Publisher: PEARSON
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Chapter 2, Problem 23PDQ
Summary Introduction

To explain: All the possible content related to the given chromosomes preparation.

Introduction: Division of cells is a very important step in a cell cycle. This helps the cells to increase in number. Cells division can be meiotic or mitotic based on whether the genetic material remains the same as that in the parents or is reduced to half.

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Can you please Draw what this should look like. Chromosome Model Procedure for making a solid wire model of a chromosome: 1. Get 4 solid wires, 2 long ( 1 green and 1 red ), 2 short ( 1 green and 1 red ). This will represent 4 chromatins of a The wires of the same size are homologous. Red wire will come from the female and green wire from the male. Long green : 1a                       Long red : 1b Short green : 2c                      Short red : 2d 2. Let the cell pass the S phase. Replicate or duplicate each chromatin Do this getting another set of wires identical to the original set. Label as before. 3. Join the replicated chromatin fiber using a tape. The tape will also mark the position of the centromere. For the short chromatin, place the tape exactly at the center, while for the long chromatin, place it at ¾ from the end of the wire. This will now represent the chromosomes.
A prairie grass species called "little bluestem" is tetraploid. It has four complete sets of chromosomes. There are ten kinds of chromosomes; in other words, each complete set of chromosomes has a total of 10 chromosomes. A single somatic cell (e.g., a cell in a leaf) will have 40 chromosomes, 4 of each kind of chromsome, i.e., 4 of the number 1 chromsome, 4 of the number 2 chromsome, etc.  The illustration below shows prophase of meiosis 1 in chromosome number 10. In a diploid cell, there would be one tetrad (group of 4 chromatids) for each kind of chromosome.  For example, there would be one tetrad for chromosome 8, one for chromsome 9, etc.  When the tetraploid little bluestem undergoes meiosis, how many of chromosome number 10 will each sperm cell carry?
Consider the following DNA molecule (shown in the picture) and assume this is the DNA sequence of the entire chromosomes.  list the amino acid sequences of the possible protein or proteins that could be produced from this DNA sequence what would be the DNA sequence of a sister chromatid generated from this chromosome sequence? (specify the 5' nd 3' ends)

Chapter 2 Solutions

Concepts of Genetics (11th Edition)

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 - Prob. 19PDQCh. 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 - The nuclear DNA content of a single sperm cell in...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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