Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 9.1, Problem 2CC
WHAT IF? A chicken has 78 chromosomes in its somatic cells. How many chromosomes did the chicken inherit from each parent? How many chromosomes are in each of the chicken’s gametes? How many chromosomes will be in each somatic cell of the chicken’s offspring?
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Chapter 9 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 9.1 - WHAT IF? A chicken has 78 chromosomes in its...Ch. 9.2 - Compare cytokinesis in animal cells and plant...Ch. 9.2 - Prob. 3CCCh. 9.2 - Compare the roles of tubulin and actin during...Ch. 9.3 - Prob. 1CCCh. 9.3 - Prob. 2CCCh. 9.3 - Compare and contrast a benign tumor and a...Ch. 9.3 - Prob. 4CCCh. 9 - Through a microscope, you can see a cell plate...Ch. 9 - In the cells of some organisms, mitosis occurs...
Ch. 9 - Which of the following does not occur during...Ch. 9 - Prob. 4TYUCh. 9 - The drug cytochalasin B blocks the function of...Ch. 9 - DRAW IT Draw one eukaryotic chromosome as it would...Ch. 9 - The light micrograph shows dividing cells near the...Ch. 9 - SCIENTIFIC INQUIRY Although both ends of a...Ch. 9 - FOCUS ON EVOLUTION The result of mitosis is that...Ch. 9 - SYNTHESIZE YOUR KNOWLEDGE Shown here are two He La...Ch. 9 - FOCUS ON INFORMATION The continuity of life is...
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- Task: Show your work/explain your reasoning as much as possible. If a certain species has a DNA content of 12 picograms in each diploid cell's nucleus when the cell in in G1 of the cell cycle, what would be the expected DNA content (in picograms) of a triploid cell (from the same species) in mitotic prophase? Consider ploidy changes and/or chromosome form changes, if applicable, when explaining your reasoning.arrow_forwardMAKE CONNECTIONS The ABO blood type locus hasbeen mapped on chromosome 9. A father who has typeAB blood and a mother who has type O blood have achild with trisomy 9 and type A blood. Using this information, can you tell in which parent the nondisjunctionoccurred? Explain your answer. (See Figures 14.11and 15.13.)arrow_forwardDiscuss Concepts One of the human chromosome pairs carries a gene that influences eye color. In an individual human, one chromosome of this pair has an allele of this gene that contributes to the formation of blue eyes. The other chromosome of the pair has an allele that contributes to brown eye color (other genes also influence eye color in humans). After meiosis in the cells of this individual, what fraction of the nuclei will carry the allele that contributes to blue eyes? To brown eyes?arrow_forward
- MAKE CONNECTIONS Look at Figure 12.7 and imagine the twodaughter cells undergoing another round of mitosis, yielding four cells.Compare the number of chromosomes in each of those four cells, aftermitosis, with the number in each cell in Figure 13.8, after meiosis. Whatis it about the process of meiosis that accounts for this difference, eventhough meiosis also includes two cell divisions?arrow_forwardTask: Show your work/explain your reasoning as much as possible. Grading Criteria: I want the correct answer and I want to see your work or read an explanation of your reasoning. Question: If a certain species has a DNA content of 5 picograms in each diploid cell's nucleus when the cell in in G1 of the cell cycle, what would be the expected DNA content (in picograms) of a diploid cell (from the same species) in mitotic prophase? Explain your reasoning. Consider ploidy changes and/or chromosome form changes, if applicable, when explaining your reasoning.arrow_forwardQ1. a. Manually, using a pencil, draw a cell in anaphase II from an organism in which 2n = 2 and each chromosome is metacentric. b. Given that each G1 nucleus from this organism contains 16 picograms of DNA, how many picograms of chromosomal DNA would you expect in the cell shown here?arrow_forward
- WHAT IF? Males afflicted with Kartagener’s syndromeare sterile because of immotile sperm, and they tend tosuffer from lung infections. This disorder has a geneticbasis. Suggest what the underlying defect might be.arrow_forward7) Why aren't Turners females who have one X chromosome phenotypically normal given that males only have one X and are normal and all female mammals inactivate one of their 2 X chromosomes leaving with one X just like Turners females and these females are also normal, but Turner's females are not normal (have abnormal ovaries). Why? 8.Sex Determination A .Compare sex determination in humans (what genetically and biochemically determines male vs female) and compare this to sex determination in Drosophila fruit flies what genetically and biochemically determines male vs female in fruit flies). B. What roles do the genes for a) sisterless, b) sex lethal (sxl) , tra (transformer gene) and dsx-f (double sex) play in Drosophila sex determinationarrow_forwardWHAT IF? If the parental (P generation) flies had been true-breedingfor gray body with vestigial wings and black body with normal wings, whichphenotypic class(es) would be largest among the testcross offspring?arrow_forward
- Task: Show your work/explain your reasoning as much as possible Grading Criteria: I want the correct answer and I want to see your work or read an explanation of your reasoning. Question If a certain species has a DNA content of 12 picograms in each diploid cell's nucleus when the cell in in G1 of the cell cycle, what would be the expected DNA content (in picograms) of a triploid cell (from the same species) in mitotic prophase? Consider ploidy changes and/or chromosome form changes, if applicable, when explaining your reasoning.arrow_forwardSelect the true statements. (can be multiple). Sperm and egg cells are diploid, meaning that they have two copies of the human genome. Somatic cells are haploid, meaning that they have one copy of the human genome. Stem cells are haploid, meaning that they have one copy of the human genome. Somatic cells are diploid, meaning that they have two copies of the human genome.arrow_forward6. Consider your btoehr and your son. a. If you are female, will your brother and your son have essentially identically Y chromosomes? Explain your answer. b. If you are male, will your brother and your son have essentially identical Y chromosomes? Explan your answer.arrow_forward
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