Human Physiology: An Integrated Approach (7th Edition)
7th Edition
ISBN: 9780321981226
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Chapter 12, Problem 2CC
Summary Introduction
To determine: The justification for the fact that the A band are the darkest region of the sarcomere.
Introduction: A myofibril is a multinucleated single muscle cell. It consists of thick and thin filaments. Components of myofibril are Z disk, I band, H zone, M line, and A band. These components are present in a repeating pattern. One repeating pattern is known as a sarcomere.
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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 12 Solutions
Human Physiology: An Integrated Approach (7th Edition)
Ch. 12 - Identify as many pairs of antagonistic muscle...Ch. 12 - Prob. 2CCCh. 12 - Prob. 3CCCh. 12 - Prob. 4CCCh. 12 - What are the three anatomical elements of a...Ch. 12 - What is the chemical signal at a neuromuscular...Ch. 12 - Prob. 7CCCh. 12 - Prob. 8CCCh. 12 - Prob. 9CCCh. 12 - Name an elastic fiber in the sarcomere that aids...
Ch. 12 - Prob. 11CCCh. 12 - Prob. 12CCCh. 12 - Prob. 13CCCh. 12 - According to the convention for naming enzymes,...Ch. 12 - Prob. 15CCCh. 12 - Prob. 16CCCh. 12 - Summation in muscle fibers means that the...Ch. 12 - Prob. 18CCCh. 12 - Which type of runner would you expect to have more...Ch. 12 - What is the response of a muscle fiber to an...Ch. 12 - Prob. 21CCCh. 12 - One study found that many world-class athletes...Ch. 12 - What is the response of a muscle fiber to an...Ch. 12 - Prob. 24CCCh. 12 - Prob. 25CCCh. 12 - Prob. 26CCCh. 12 - Prob. 27CCCh. 12 - Prob. 28CCCh. 12 - What happens to contraction if a smooth muscle is...Ch. 12 - Prob. 30CCCh. 12 - Prob. 31CCCh. 12 - Prob. 32CCCh. 12 - How can a neuron alter the amount of...Ch. 12 - Prob. 34CCCh. 12 - Prob. 35CCCh. 12 - The three types of muscle tissue found in the...Ch. 12 - Which two muscle types are striated?Ch. 12 - Which type of muscle tissue is controlled only by...Ch. 12 - Arrange the following skeletal muscle components...Ch. 12 - The modified endoplasmic reticulum of skeletal...Ch. 12 - Prob. 6RQCh. 12 - Prob. 7RQCh. 12 - List six proteins that make up the myofibrils....Ch. 12 - List the letters used to label the elements of a...Ch. 12 - Briefly explain the functions of titin and...Ch. 12 - During contraction, the __________ band remains a...Ch. 12 - Explain the sliding filament theory of...Ch. 12 - Explain the roles of troponin, tropomyosin, and...Ch. 12 - Which neurotransmitter is released by somatic...Ch. 12 - What is the motor end plate, and what kinds of...Ch. 12 - Prob. 16RQCh. 12 - Prob. 17RQCh. 12 - Prob. 18RQCh. 12 - The basic unit of contraction in an intact...Ch. 12 - The two functional types of smooth muscle are...Ch. 12 - Prob. 21RQCh. 12 - Prob. 22RQCh. 12 - Prob. 23RQCh. 12 - Define muscle fatigue. Summarize factors that...Ch. 12 - Prob. 25RQCh. 12 - Prob. 26RQCh. 12 - Prob. 27RQCh. 12 - What is the role of the sarcoplasmic reticulum in...Ch. 12 - Compare and contrast: a. fast-twitch...Ch. 12 - Prob. 30RQCh. 12 - One way that scientists study muscles is to put...Ch. 12 - Prob. 32RQCh. 12 - On the basis of what you have learned about muscle...Ch. 12 - Prob. 34RQCh. 12 - Prob. 35RQ
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