Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Textbook Question
Chapter 14.4, Problem 1MC
Describe the theories of gradualism and punctuated equilibrium. How can the fossil record support both?
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Suppose that the population from question #1 (data is in table below) is experiencing inbreeding depression (F=.25) (and no longer experiencing natural selection). Calculate the new expected genotype frequencies (f) in this population
after one round of inbreeding. Please round to 3 decimal places.
Genotype
Adh Adh
Number of Flies
595
Adh Adh
310
Adhs Adhs
95
Total
1000
fladh Adh-
flAdn Adh
fAdhs Adh
Which of the following best describes why it is difficult to develop antiviral drugs? Explain why.
A. antiviral drugs are very difficult to develop andhave no side effects
B. viruses are difficult to target because they usethe host cell’s enzymes and ribosomes tometabolize and replicate
C. viruses are too small to be targeted by drugs
D. viral infections usually clear up on their ownwith no problems
Chapter 14 Solutions
Biology: Concepts and Investigations
Ch. 14.1 - What is the relationship between macroevolution...Ch. 14.1 - Prob. 2MCCh. 14.1 - What are some of the challenges in defining...Ch. 14.2 - Prob. 1MCCh. 14.2 - Prob. 2MCCh. 14.3 - Distinguish among allopatric, parapatric, and...Ch. 14.3 - Prob. 2MCCh. 14.3 - Prob. 3MCCh. 14.4 - Describe the theories of gradualism and punctuated...Ch. 14.4 - Prob. 2MC
Ch. 14.5 - Prob. 1MCCh. 14.5 - Prob. 2MCCh. 14.5 - Prob. 3MCCh. 14.6 - Describe the taxonomic hierarchy.Ch. 14.6 - What is the advantage of a cladistics approach...Ch. 14.6 - Distinguish between ancestral and derived...Ch. 14.6 - Prob. 4MCCh. 14.6 - How is a cladogram constructed?Ch. 14.6 - Prob. 6MCCh. 14.7 - Prob. 1MCCh. 14.7 - Prob. 2MCCh. 14 - The biological species concept defines species...Ch. 14 - Prob. 2MCQCh. 14 - A mountain range separates a population of...Ch. 14 - Prob. 4MCQCh. 14 - Prob. 5MCQCh. 14 - Prob. 6MCQCh. 14 - What type of reproductive barrier applies to each...Ch. 14 - Why do species become extinct? Choose a species...Ch. 14 - Prob. 3WIOCh. 14 - Which of the groups in figure 1.9 represent...Ch. 14 - On figure 14.20, circle a monophyletic group, a...Ch. 14 - Prob. 1PITCh. 14 - Add fertilization and offspring to this concept...Ch. 14 - Prob. 3PIT
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