EBK HUMAN PHYSIOLOGY
7th Edition
ISBN: 9780133983401
Author: Silverthorn
Publisher: YUZU
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Textbook Question
Chapter 14, Problem 21CC
Name two functions of the AV node. What is the purpose of AV node delay?
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The shape of radishes may be long (SL/SL), oval (SL/SS), or round (SS/SS), and the color of radishes may be red (CR/CR), purple (CR/CW) or white (CW/CW). If a long, red radish plant is crossed with a round, white plant, what will be the appearance of the F1 and F2 generations?
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Question #3:
In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would
transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming
there was just one gene conferring gametophytic obligate apomixis, and that the two parents are
inbreds, what would be the consequences of such a cross if:
a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non-
apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic
and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female
first (left side) in the parental cross.
b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non-
apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic
and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female
first (left side) in the…
Chapter 14 Solutions
EBK HUMAN PHYSIOLOGY
Ch. 14 - A cardiovascular system has what three major...Ch. 14 - What is the difference between (a) the pulmonary...Ch. 14 - Which is more important for determining flow...Ch. 14 - The two identical tubes below have the pressures...Ch. 14 - All four tubes below have the same driving...Ch. 14 - Two canals in Amsterdam are identical in size, but...Ch. 14 - What prevents electrical signals from passing...Ch. 14 - Prob. 8CCCh. 14 - Prob. 9CCCh. 14 - Compare the receptors and channels involved in...
Ch. 14 - If a myocardial contractile cell is placed in...Ch. 14 - A drug that blocks all Ca2+ channels in the...Ch. 14 - Which ions moving in what directions cause the...Ch. 14 - At the molecular level, what is happening during...Ch. 14 - Lidocaine is a molecule that blocks the action of...Ch. 14 - What does increasing K+ permeability do to the...Ch. 14 - A new cardiac drug called ivabradine selectively...Ch. 14 - Do you think that the Ca2+ channels in...Ch. 14 - What happens to the action potential of a...Ch. 14 - In an experiment, the vagus nerve, which carries...Ch. 14 - Name two functions of the AV node. What is the...Ch. 14 - Prob. 22CCCh. 14 - Occasionally an ectopic pacemaker {ktopos, out of...Ch. 14 - Prob. 24CCCh. 14 - Which chamberatrium or ventriclehas higher...Ch. 14 - Prob. 26CCCh. 14 - Prob. 27CCCh. 14 - Prob. 28CCCh. 14 - Prob. 29CCCh. 14 - Why does ventricular pressure shoot up suddenly at...Ch. 14 - Prob. 31CCCh. 14 - Prob. 32CCCh. 14 - A persons aortic valve opening has become...Ch. 14 - What contributions to understanding the...Ch. 14 - List three functions of the cardiovascular system.Ch. 14 - Prob. 3RQCh. 14 - Prob. 4RQCh. 14 - Prob. 5RQCh. 14 - Prob. 6RQCh. 14 - Prob. 7RQCh. 14 - Distinguish between the two members of each of the...Ch. 14 - Prob. 9RQCh. 14 - Prob. 10RQCh. 14 - What is the proper term for each of the following?...Ch. 14 - List the events of the cardiac cycle in sequence,...Ch. 14 - Prob. 13RQCh. 14 - Compare and contrast the structure of a cardiac...Ch. 14 - Prob. 15RQCh. 14 - Correlate the waves of an ECG with mechanical...Ch. 14 - Prob. 17RQCh. 14 - List and briefly explain four types of information...Ch. 14 - Define inotropic effect. Name two drugs that have...Ch. 14 - Prob. 20RQCh. 14 - Police Captain Jeffers has suffered a myocardial...Ch. 14 - Prob. 22RQCh. 14 - Prob. 23RQCh. 14 - Police Captain Jeffers in question 21 has an...Ch. 14 - Prob. 25RQCh. 14 - Prob. 26RQCh. 14 - Prob. 27RQCh. 14 - A person has a total blood volume of 5 L. Of this...
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- Question #5: Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The genes show independent assortment. Recessive alleles at both loci are required for the facultative apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C. At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype. A facultative apomict male, capable of producing viable pollen, was crossed with a sexually reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following temperatures*: a) 15°C? b) 25°C? *for full credit, show crosses and genotypes where appropriate. Remember to position the female first (left side) in the cross. Type your answer here:arrow_forwarda. What percentage of a drug is eliminated after 4 half-lives? Please round to the nearest percent. b. What will happen to elimination of the drug in the previous question if the system is saturated? explain and show any math involvedarrow_forwardIf you wanted to reduce the difference between peak and trough levels that occur with repeated administration of a drug, how would you adjust the dose and dose interval without changing the plateau concentration (plateau is the average of peak and trough levels)? Select your answers for both dose and interval. Hint: It may be helpful to think about this problem using an example such as food. How would you eat if you wanted to maintain very steady hunger/satiety levels without changing your total caloric intake? Options: A. Dose; Increase dose B. Dose; Decrease dose C. Dose; Do not change dose D. Interval; Increase the interval between doses (give the drug less frequently) E. Interval; Decrease the interval between doses (give the drug more frequently) F. Interval; Do not change the intervalarrow_forward
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