Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433769
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Chapter 10, Problem 8TYU
SCIENTIFIC INQUIRY
The diagram in question 5 represents a meiotic cell. Assume the freckles gene is at the locus marked F, and the hair-color gene is located at the locus marked H, both on the long chromosome. The person from whom this cell was taken has inherited different alleles for each gene (“freckles” and “black hair” from one parent and “no freckle s” and “blond hair” from the other). Predict allele combinations in the gametes resulting from this meiotic event List other possible combinations of these alleles in this person’s gametes.
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SCIENTIFIC INQUIRY The diagram in question 6 represents just a few of the chromosomes of a meiotic cell in a certain person. Assume that the freckles gene is located at the locus marked F, and the hair-color gene is located at the locus marked H, both on the long chromosome. The individual from whom this cell was taken has inherited different alleles for each gene (“freckles” and “black hair” from one parent, and “no freckles” and “blond hair” from the other). Predict allele combinations in the gametes resulting from this meiotic event. (It will help if you draw out the rest of meiosis and label the alleles by name.) List other possible combinations of these alleles in this individual’s gametes.
Question is also in the picture.
Compare and contrast mitosis and meiosis with at least 5 descriptors of each. Explain how meiosis leads to genetic diversity. Why is genetic diversity important?
Explain in your own words how errors in mitosis could lead to the formation of cancerous cells as an organism (humans in particular for our focus) ages, and why errors in meiosis would not.
Chapter 10 Solutions
Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
Ch. 10.1 - MAKE CONNECTIONS Using what you know of gene...Ch. 10.1 - How does an asexually reproducing eukaryotic...Ch. 10.1 - WHAT IF? A horticulturalist breeds orchids, trying...Ch. 10.2 - Prob. 2CCCh. 10.2 - Prob. 3CCCh. 10.2 - WHAT IF? A certain eukaryote lives as a...Ch. 10.3 - WHAT IF? After the synaptonemal complex...Ch. 10.4 - Prob. 1CCCh. 10.4 - WHAT IF? If maternal and paternal chromatids have...Ch. 10 - A human cell containing 22 autosomes and a Y...
Ch. 10 - Homologous chromosomes move toward opposite poles...Ch. 10 - If the DNA content of a diploid cell in the G1...Ch. 10 - Prob. 4TYUCh. 10 - DRAW ITThe diagram shows a cell in meiosis. (a)...Ch. 10 - Prob. 7TYUCh. 10 - SCIENTIFIC INQUIRY The diagram in question 5...Ch. 10 - Prob. 9TYUCh. 10 - Prob. 10TYUCh. 10 - Prob. 11TYU
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- Which event occurs during meiosis that increases genetic variation and contributes to the process of evolution? A. Cytokinesis occurs and separates the cytoplasm and its contents into daughter cells. B. Diploid gametes divide to form haploid daughter cells with unique genetic makeup. C. During interphase, homologous chromosomes are duplicated to form sister chromatids. D. Segments of DNA are exchanged between homologous chromosomes during crossing over.arrow_forwardIn experiment of following chromosomal DNA movement through meiosis, Blue have 44 chromosomes in every cell. Determibne how many chromosomes you would expect to find in the following: a. sperm cell b. egg cell: c. Daughter Cell from mitosis: d. Daughter cell from Meiosis ll:arrow_forwardUse an illustration to show the differences between mitosis and meiosis. Explain three processes that give rise to genetic variation. The diagram below shows a pair of homologous chromosomes in a diploid cell. Which of the following is the correct diagram of the gametes that produced the cell if there were no errors in meiosis?arrow_forward
- Question: Hand draw meiosis (I and II). Start with 2 pairs of homologous chromosomes. Chromosomes in each pair should look the same BUT should be distinctly different from the other pair of chromosomes.arrow_forwardThe model shows the process of meiosis. Use the model to describe how genetic continuity is preserved through meiosis. A. Cell 7 shows different colored chromosomes than Cell 8. When meiosis is a part of reproduction, none of the offspring will have similar DNA. B. Cell 2 shows twice as many chromosomes as Cell 3. When meiosis is a part of reproduction, the offspring inherits twice as much DNA as its parent. C. Cell 6 shows different colored chromatids than Cell 1. When meiosis is a part of reproduction, the offspring's DNA will be entirely different from the parent's DNA. D. Cell 5 shows half the number of chromatids present in Cell 1. When meiosis is a part of reproduction, half of the offspring's DNA will come from each parent.arrow_forwardJust answer it, no explanation A major characteristic that distinguishes meiosis from mitosis is Select one: A.that there is only one division of DNA during meiosis. B.the two replications of DNA during mitosis. C.the reduction of chromosome number during meiosis. A dog body cell carries 78 chromosomes. A dog sperm cell is likely to contain how many chromosomes? Select one: A.19 B.78 C.39arrow_forward
- Cell is the basic entity of life. Zygotes after going through several multiplications give rise to organism. In view of genetic concepts will you unveil the mechanism how it become the large organism also highlight the variation creation machinery in production of meiotic productarrow_forwardIn humans, random alignment of homologous chromosomes at metaphase, I in meiosis can theoretically generate about how many different combinations of chromosomes? Group of answer choices 8 8,000 900,000 8,000,000arrow_forwardDiploid vs. Haploid: Given 2n = 30a. Haploid (n) number? b. This organism has a total of how many chromosomes? c. How many different pairs of chromosomes does this organismhave?arrow_forward
- Cell division is involved in the growth, reproductive development and replacement of old cells in organisms. By using only 6 chromosome, draw and label a new cell showing how these chromosomes would arrange themselves during the metaphase of meiosis I. There is one crossing over that occurs between one homologous pair. In your drawing distinguishes between homologous pairs. Compare the process of independent assortment and crossing over. Decide and justify which process has the greatest influence on genetic diversity.Remark: The word count limit is 250 words only, no less than 100 words.arrow_forwardWhich of the following is not a contributor to genetic variation? (a) binary fission (b) crossing-over of homologous chromosomes (c) random assortment of homologous chromosomes (d) fertilizationarrow_forwardIn meiosis, we talk about the daughter cells having half the chromosomes of the parent cell. Choose the option that best describes what is happening to end up with half the number of chromosomes in the daughter cells. Question 8Answer a. All of the chromosomes are chemically cut in half so the daughter cells get the top or the bottom half of each of the chromosomes. b. Each daughter cell has one chromosome from each of the homologous pairs found in the parent cell. c. Each daughter cells gets a random set of chromosomes that add up to half the number of chromosomes as the parent cells had..arrow_forward
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