Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Chapter 2, Problem 3CYU
What type of energy is available when we are still? When we are exercising?
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Frequency of
allele A1
Question 2
The graph below shows results of two simulations, both depicting the rise in
frequency of beneficial allele in a population of infinite size. The selection
coefficient and the starting frequency are the same, but in one simulation the
beneficial allele is dominant and in the other it is recessive. Neither allele is
fixed by 500 generations.
1.0
1
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0.6
0.4
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0.2
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0
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200 300
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Generation
(a) Which simulation shows results for a dominant and which shows results for a
recessive allele? How can you tell? (4 pts)
(b) Neither of the alleles reaches fixation by 500 generations. If given enough
time, will both of these alleles reach fixation in the population? Why or why
not? (3 pts)
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Question 14
The relative fitnesses of three genotypes are WA/A= 1.0, WA/a = 0.7, and Wa/a =
0.3. If the population starts at the allele frequency p = 0.5, what is the value of p
in the next generation? (3 pts)
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According to a recent study, 1 out of 50,000 people will be diagnosed with
cystic fibrosis. Cystic fibrosis can be caused by a mutant form of the CFTR gene
(dominant gene symbol is F and mutant is f).
A. Using the rate of incidence above, what is the frequency of carriers of the
cystic fibrosis allele for CFTR in the US? (3 pts)
B. In a clinical study, 400 people from the population mentioned in (A.) were
genotyped for BRCA1 Listed below are the results. Are these results in Hardy-
Weinberg equilibrium? Use Chi Square to show whether or not they are. (3 pts)
BRCA1 genotype
# of women
390
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Chapter 2 Solutions
Anatomy & Physiology
Ch. 2 - What form of energy is found in the food we eat?Ch. 2 - What form of energy is used to transmit messages...Ch. 2 - What type of energy is available when we are...Ch. 2 - What two elements besides H and N make up the bulk...Ch. 2 - An element has a mass of 207 and has 125 neutrons...Ch. 2 - How do the terms atomic mass and atomic weight...Ch. 2 - What is the meaning of the term molecule?Ch. 2 - Why is sodium chloride (NaCl) considered a...Ch. 2 - Blood contains a liquid component and living...Ch. 2 - What kinds of bonds form between water molecules?
Ch. 2 - Oxygen (8O) and argon (18A) are both gases. Oxygen...Ch. 2 - Assume imaginary compound XY has a polar covalent...Ch. 2 - Which reaction type-synthesis, decomposition, or...Ch. 2 - Why are many reactions that occur in living...Ch. 2 - What specific name is given to decomposition...Ch. 2 - Water makes up 6080% of living matter. What...Ch. 2 - Salts are electrolytes. What does that mean?Ch. 2 - Which ion is responsible for increased acidity?Ch. 2 - To minimize the sharp pH shift that occurs when a...Ch. 2 - Prob. 23CYUCh. 2 - What are the monomers of carbohydrates called?...Ch. 2 - What is the animal form of stored carbohydrate...Ch. 2 - Prob. 22CYUCh. 2 - What does the name amino acid tell you about the...Ch. 2 - What is the primary structure of proteins?Ch. 2 - What are the two types of secondary structure in...Ch. 2 - What is the main event that molecular chaperones...Ch. 2 - How do enzymes reduce the amount of activation...Ch. 2 - How do DNA and RNA differ in the bases and sugars...Ch. 2 - What are two important roles of DNA?Ch. 2 - Glucose is an energy-rich molecule. So why do body...Ch. 2 - What change occurs in ATP when it releases energy?Ch. 2 - Which of the following forms of energy is the...Ch. 2 - All of the following are examples of the four...Ch. 2 - The mass number of an atom is (a) equal to the...Ch. 2 - A deficiency in this element can be expected to...Ch. 2 - Which set of terms best describes a proton? (a)...Ch. 2 - The subatomic particles responsible for the...Ch. 2 - Prob. 7MCCh. 2 - Which of the following does not describe a...Ch. 2 - In a beaker of water, the water-water bonds can...Ch. 2 - When a pair of electrons is shared between two...Ch. 2 - Molecules formed when electrons are shared...Ch. 2 - Which of the following covalently bonded molecules...Ch. 2 - Prob. 13MCCh. 2 - Factors that accelerate the rate of chemical...Ch. 2 - Prob. 15MCCh. 2 - Waters importance to living systems reflects (a)...Ch. 2 - Acids (a) release hydroxyl ions when dissolved in...Ch. 2 - Prob. 18MCCh. 2 - Prob. 19MCCh. 2 - A chemical has an amine group and an organic acid...Ch. 2 - Prob. 21MCCh. 2 - Enzymes are organic catalysts that (a) alter the...Ch. 2 - Define or describe energy, and explain the...Ch. 2 - Some energy is lost in energy energy conversion....Ch. 2 - Provide the atomic symbol for each of the...Ch. 2 - Consider the following information about three...Ch. 2 - How many moles of aspirin, C9H8O4, are in a bottle...Ch. 2 - Given the following types of atoms, decide which...Ch. 2 - What are hydrogen bonds and how are they important...Ch. 2 - Prob. 30SAQCh. 2 - Differentiate clearly between primary, secondary,...Ch. 2 - Prob. 32SAQCh. 2 - Describe the mechanism of enzyme action.Ch. 2 - Explain the importance of molecular chaperones.Ch. 2 - Explain why, if you pour water into a glass very...
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