Genetic Analysis: An Integrated Approach (3rd Edition)
3rd Edition
ISBN: 9780134605173
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 8P
If the haploid number for a plant species is
diploidy
pentaploidy
octaploidy
trisomy
triploidy
monosomy
tetraploidy
hexaploidy
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All of the following cells, shown in various stages of mitosis and meiosis, come from the same rare species of plant. a. What is the diploid number of chromosomes in this plant? b. Give the names of each stage of mitosis or meiosis shown. c. Give the number of chromosomes and number of DNA molecules per cell present at each stage.
For a species with a diploid number of 22, how many chromosomes will be present in the somatic nuclei of individuals that are haploid, tetraploid, trisomic, and monosomic.
In the plant, Haplopappus gracile there is one long pair and one short pair of chromosomes. In the diagrams
below, anaphase of individual cells in meiosis or mitosis in a plant that is heterozygous for the genes, A and
B (which are on separate chromosomes) are shown. The lines represent chromosomes or chromatids and the
points of the "V" are the centromeres. For each case, indicate if the cell represents meiosis I, meiosis II,
mitosis, or impossible situation. Provide a brief (one sentence) reason for your decision.
1.
A
A
a
В
a
B
9.
A
a
B
A
a
2.
а
В
В
a
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a
B
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Chapter 10 Solutions
Genetic Analysis: An Integrated Approach (3rd Edition)
Ch. 10 - 10.1 Give descriptions for the following...Ch. 10 - 10.2 The human genome contains contains base...Ch. 10 - In eukaryotic DNA, Where are you most likely to...Ch. 10 - 10.4 Describe the importance of light and dark G...Ch. 10 - Human late prophase karyotypes have about 2000...Ch. 10 - Prob. 6PCh. 10 - From the following list, identify the types...Ch. 10 - 10.8 If the haploid number for a plant species is...Ch. 10 - Mating between a male donkey (2n=64) and a female...Ch. 10 - A researcher interested in studying a human gene...
Ch. 10 - 10.11 In what way does position effect variegation...Ch. 10 - 10.12 A pair of homologous chromosomes in...Ch. 10 - 10.13 An animal heterozygous for a reciprocal...Ch. 10 - Dr. Ara B. Dopsis has an idea he thinks will be a...Ch. 10 - A normal chromosome and its homolog carrying a...Ch. 10 - The accompanying chromosome diagram represents a...Ch. 10 - 10.17 Histone protein isolated from pea plants...Ch. 10 - 10.18 A survey of organisms living deep in the...Ch. 10 - In humans that XX/XO mosaics, the phenotype is...Ch. 10 - 10.20 A plant breeder would like to develop the...Ch. 10 - In Drosophilia, seven partial deletion (1to7)...Ch. 10 - Two experimental varieties of strawberry are...Ch. 10 - 10.23 In the tomato, Solanum esculentum, tall ()...Ch. 10 - A boy with Down syndrome (trisomy 21) has 46...Ch. 10 - Experimental evidence demonstrates that the...Ch. 10 - Prob. 26PCh. 10 - Genomic DNA from the nematode worm...Ch. 10 - 10.28 A small population of deer living on an...Ch. 10 - A eukaryote with a diploid number of 2n=6 carries...Ch. 10 - Prob. 30PCh. 10 - For the following crosses, determine as accurately...Ch. 10 - A healthy couple with a history of three previous...
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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
- Discuss the following sets of terms: a. trisomy and triploidy b. aneuploidy and polyploidyarrow_forwardWhich 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.arrow_forwardIn the following diagram, designate each daughter cell as diploid (2n) or haploid (n).arrow_forward
- A diploid plant is heterozygous for two linked genes, A and B. Crossovers between the two genes occurs in ~10% of meiosis. Multiple crossovers are never observed in one cell undergoing meiosis. What fraction of the gametes produced by this diploid plant are expected to be recombinant type? O 5% O 10% 2.5% 25%arrow_forwardHow many chromosomes would be found in somatic cells of an allotetraploid plant if its parent species had diploid (2n) numbers of 4 and 6 respectively?arrow_forwardCertain plants may have more than two copies of a chromosome. In some wild strawberries octoploid individuals exist! If the haploid number for these strawberries is 7, how many chromosomes are there in a somatic cell of an octoploid individual of this species?arrow_forward
- Discuss the following sets of terms: a) trisomy and triploidy, b) aneuploidy and polyploidy.arrow_forwardA 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?arrow_forwardIn humans, each cell normally contains a diploid (2n) chromosome number of 46. Say that a human body cell and sex cell will undergo mitosis and meiosis respectively, provide the number of chromosomes in each cell for every stage. Stage of Mitosis Number of Stages of Meiosis Number of Chromosomes in Chromosomes in One Cell One Cell Prophase 2n = Prophase 1 2n = Prometaphase 2n = Prometaphase 1 2n = Metaphase 2n = Metaphase 1 2n = Anaphase 2n = Anaphase 1 2n = Telophase and Cytokinesis Telophase 1 and Cytokinesis 2n = n = Prophase 2 Prometaphase 2 n = Metaphase 2 n = Anaphase 2 = u Telophase 2 and Cytokinesis n =arrow_forward
- Match the following: A duplicated chromosome is made of 2.A maternal and paternal chromosome present together, each with two sister chromatids 3.Semi-condensed DNA made up of coiled nucleosomes. 4.Super-coiled DNA strands. 5.Contains only one copy of each chromosome. 6.Name of an error during meiosis resulting in fewer chromosomes than normal in a zygote or individual (2n-1) 7.General term for an error resulting in the incorrect number of chromosomes in a gamete after meiosis 8.A specific version of a gene, such as blue eye colour 9.A region on a chromosome that codes for a protein 10.Region where chromosomes are attached 11.None of the above (should be selected more than once) with monosomy trisomy aneuploidy centromere gene sister chromatids diploid Haploid tetrad telomere Chromosomes Chromatin allelearrow_forwardDuring metaphase I of meiosis, tetrads align along the metaphase plate independently of each other. Therefore, there is a random “shuffle” of maternal and paternal chromosomes in the resulting gametes.The following diagram demonstrates how this works in a diploid cell with four chromosomes (2n=4) . Because there are two pairs of chromosomes and each pair can align in one of two ways during metaphase I, the number of possible variations in the gametes produced is 22 or 4.For an organism that is , there are three pairs of chromosomes, so the number of possible variations in the gametes produced due to independent assortment in metaphase I is 23 or 8. In an organism with a haploid number of 7, how many possible combinations of maternal and paternal chromosomes can occur in its gametes? a. 72=49 b. 27=128 c.17=1 d. 214=16 384arrow_forwardDuring metaphase I of meiosis, tetrads align along the metaphase plate independently of each other. Therefore, there is a random “shuffle” of maternal and paternal chromosomes in the resulting gametes.The following diagram demonstrates how this works in a diploid cell with four chromosomes (2n=4) . Because there are two pairs of chromosomes and each pair can align in one of two ways during metaphase I, the number of possible variations in the gametes produced is 22 or 4.For an organism that is , there are three pairs of chromosomes, so the number of possible variations in the gametes produced due to independent assortment in metaphase I is 23 or 8. In an organism with a haploid number of 2n=6 , how many possible combinations of maternal and paternal chromosomes can occur in its gametes? a. 72=49 b. 27=128 c.17=1 d. 214=16 384arrow_forward
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