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 4.6, Problem 2CC
WHAT IF? Males afflicted with Kartagener’s syndrome are sterile because of immotile sperm, and they tend to suffer from lung infections. This disorder has a genetic basis. Suggest what the underlying defect might be.
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Chapter 4 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 4.1 - Prob. 1CCCh. 4.1 - Prob. 2CCCh. 4.2 - Briefly describe the structure and function of the...Ch. 4.2 - Prob. 2CCCh. 4.3 - What role do ribosomes play in carrying out...Ch. 4.3 - Describe the molecular composition of nucleoli,...Ch. 4.3 - WHAT IF? As a cell begins the process of dividing,...Ch. 4.4 - Describe the structural and functional...Ch. 4.4 - Describe how transport vesicles integrate the...Ch. 4.4 - WHAT IF? Imagine a protein that functions in the...
Ch. 4.5 - Describe two characteristics shared by...Ch. 4.5 - Prob. 2CCCh. 4.5 - Prob. 3CCCh. 4.6 - Prob. 1CCCh. 4.6 - WHAT IF? Males afflicted with Kartageners syndrome...Ch. 4.7 - In what way are the cells of plants and animals...Ch. 4.7 - Prob. 2CCCh. 4.7 - MAKE CONNECTIONS The polypeptide chain that makes...Ch. 4 - Which structure is not part of the endomembrane...Ch. 4 - Which structure is common to plant and animal...Ch. 4 - Which of the following is present in a prokaryotic...Ch. 4 - Prob. 4TYUCh. 4 - Cyanide binds to at least one molecule involved in...Ch. 4 - What is the most likely pathway taken by a newly...Ch. 4 - Which cell would be best for studying lysosomes?...Ch. 4 - DRAW IT From memory, draw two eukaryotic cells....Ch. 4 - SCIENTIFIC INQUIRY In studying micrographs of an...Ch. 4 - FOCUS ON EVOLUTION Compare different aspects of...Ch. 4 - FOCUS ON ORGANIZATION Considering some of the...Ch. 4 - Prob. 12TYU
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- WHAT IF? The researchers needed further evidence, so they injectedbicoid mRNA into the anterior end of an egg from a female with a mutationdisabling the bicoid gene. Given that the hypothesis was supported, whatmust their results have been?arrow_forwardWHAT IF? A chicken has 78 chromosomes in its somaticcells. How many chromosomes did the chicken inheritfrom each parent? How many chromosomes are in eachof the chicken’s gametes? How many chromosomes willbe in each somatic cell of the chicken’s offspring?arrow_forwardWHAT IF? What would the human life cycle be likeif we had alternation of generations? Assume that themulticellular diploid stage would be similar in form to anadult human.arrow_forward
- WHAT IF? As a cell begins the process of dividing, itschromosomes become shorter, thicker, and individuallyvisible in an LM (light micrograph). Explain what is happening at the molecular level.arrow_forwardVISUALIZE Label the following diagram and explain what this diagram illustrates.arrow_forwardThink Critically. Provide a concise explanation of your answer. A mutation on an autosome causes a particular protein to be overproduced, and the excess protein accumulates in the liver and damages it. Would the resulting disorder most likely be inherited in an autosomal dominant or recessive pattern? Expression of the SYR gene on the Y chromosome gives rise to the male phenotype in humans. What do you think the inheritance pattern of SYR alleles is called? 22q11.2 deletion syndrome, also called DiGeorge syndrome, causes atypical parathyroid glands, a heart defect, and an underdeveloped thymus gland. About 85% of patients have a microdeletion of part of chromosome 22. A girl, her mother, and a maternal aunt have very mild DiGeorge syndrome. They all have a reciprocal translocation of chromosomes 22 and 2. How can a microdeletion and a translocation cause the same symptoms? Why were the people with the translocation less severely affected than the people with microdeletion? What other…arrow_forward
- WHAT IF? If maternal and paternal chromatids havethe same two alleles for every gene, will crossing overlead to genetic variation?arrow_forwardApply Evolutionary Thinking When a biologist first tested a new pesticide on a population of insects, she found that only 1% of the insects survived their exposure to the poison. She allowed the survivors to reproduce and discovered that 10% of the offspring survived exposure to the same concentration of pesticide. One generation later, 50% of the insects survived this experimental treatment. What is a likely explanation for the increasing survival rate of these insects over time?arrow_forwardDirection: Explain the following in paragraph form consists of at least five sentences for each question. Compared to separate sexes and assuming self-fertilizing is not possible, what might be one advantage and one disadvantage to hermaphroditism?arrow_forward
- INTERPRET DATA Compare the two graphs in Figure 1-17. What information does the second graph illustrate? What possible explanation can you give for the differences shown in the two graphs? (a) Number of chimpanzees who successfully employed specific method of tool use. (b) Number of chimpanzees who successfully employed learned method of tool use two months later. Figure 1-17 An experiment testing learning in chimpanzee populations In the photo, wild chimpanzees are shown observing a member of their group using a tool.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_forwardMAKE CONNECTIONS Unlike some other types of birthdefects, neural tube defects are largely preventable.Explain (see Figure 41.4).arrow_forward
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