Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 22, Problem 20RQ
Gas moves from an area of ________ partial pressure to an area of ________ partial pressure.
- low; high
- low; low
- high; high
- high; low
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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…
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:
a. 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 involved
Chapter 22 Solutions
Anatomy & Physiology
Ch. 22 - Visit this site...Ch. 22 - Watch this video...Ch. 22 - Watch this video...Ch. 22 - Which of the following anatomical structures is...Ch. 22 - What is the function of the conchae in the nasal...Ch. 22 - The fauces connects which of the following...Ch. 22 - Which of the following are structural features of...Ch. 22 - Which of the following structures is not part of...Ch. 22 - What is the role of alveolar macrophages? to...Ch. 22 - Which of the following structures separates the...
Ch. 22 - A section of the lung that receives its own...Ch. 22 - The ________ circulation picks up oxygen for...Ch. 22 - The pleura that surrounds the lungs consists of...Ch. 22 - Which of the following processes does atmospheric...Ch. 22 - A decrease in volume leads to a(n) ________...Ch. 22 - The pressure difference between the intra-alveolar...Ch. 22 - Gas flow decreases as ________ increases....Ch. 22 - Contraction of the external intercostal muscles...Ch. 22 - Which of the following prevents the alveoli from...Ch. 22 - Gas moves from an area of ________ partial...Ch. 22 - When ventilation is not sufficient, which of the...Ch. 22 - Gas exchange that occurs at the level of the...Ch. 22 - The partial pressure of carbon dioxide is 45 mm Hg...Ch. 22 - Oxyhemoglobin forms by a chemical reaction between...Ch. 22 - Which of the following factors play a role in the...Ch. 22 - Which of the following occurs during the chloride...Ch. 22 - A low partial pressure of oxygen promotes...Ch. 22 - Increased ventilation that results in an increase...Ch. 22 - Exercise can trigger symptoms of AMS due to which...Ch. 22 - Which of the following stimulates the production...Ch. 22 - The olfactory pits form from which of the...Ch. 22 - A full complement of mature alveoli are present by...Ch. 22 - If a baby is bom prematurely before type II cells...Ch. 22 - When do fetal breathing movements begin? around...Ch. 22 - What happens to the fluid that remains in the...Ch. 22 - Describe the three regions of the pharynx and...Ch. 22 - If a person sustains an injury to the epiglottis,...Ch. 22 - Compare and contrast the conducting and...Ch. 22 - Compare and contrast the right and left lungs.Ch. 22 - Why are the pleurae not damaged during normal...Ch. 22 - Describe what is meant by the term lung...Ch. 22 - Outline the steps involved in quiet breathing.Ch. 22 - What is respiratory rate and how is it controlled?Ch. 22 - Compare and contrast Daltons law and Henrys law.Ch. 22 - A smoker develops damage to several alveoli that...Ch. 22 - Compare and contrast adult hemoglobin and fetal...Ch. 22 - Describe the relationship between the partial...Ch. 22 - Describe three ways in which carbon dioxide can be...Ch. 22 - Describe the neural factors involved in increasing...Ch. 22 - What is the major mechanism that results in...Ch. 22 - Dining what timeframe does a fetus have enough...Ch. 22 - Describe fetal breathing movements and their...
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