Biology
10th Edition
ISBN: 9780073383071
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 45, Problem 2U
Steroid hormones
a. can diffuse through the membrane without a carrier.
b. have a direct effect on gene expression.
c. bind to membrane receptors.
d. Both a and b are correct.
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Your goal is to produce black seeds resistant to mold. So you make the same cross again (between a homozygous black seeded, mold susceptible parent and a homozygous white seeded and mold resistant parent), and, again, advance progeny by SSD to create 100 F10 generation plants.
Based on the information you obtained from your first crossing experiment (Question #4), how many F10 plants would you expect to have black seeds and be resistant to mold?
Assume that a toxin produced by the mold fungus has been isolated. Only mold resistant seeds will germinate in the presence of the toxin. Could you use this toxin screening procedure to have segregation distortion work in your favor in the F2 generation? Explain your answer.
Info from Question 4
a. P Locus (Seed Color):
Hypothesis: The null hypothesis (H₀) is that seed color is controlled by alleles at a single locus.
Observed Data:
Total white seeds: 45 (resistant plants) + 6 (susceptible plants) = 51
Total black seeds: 7 (resistant…
Chapter 45 Solutions
Biology
Ch. 45 - Which of the following best describes hormones? a....Ch. 45 - Steroid hormones a. can diffuse through the...Ch. 45 - Second messengers are activated in response to a....Ch. 45 - Which of the following is true about lipophilic...Ch. 45 - An organ is classified as part of the endocrine...Ch. 45 - Hormones released from the pituitary gland have...Ch. 45 - Prob. 7UCh. 45 - You think one of your teammates is using anabolic...Ch. 45 - Your Uncle Sal likes to party. When he goes out...Ch. 45 - Prob. 3A
Ch. 45 - Prob. 4ACh. 45 - Prob. 5ACh. 45 - You experience a longer period than normal between...Ch. 45 - Mild vitamin D deficiency can lead to...Ch. 45 - How can blocking hormone production decrease...Ch. 45 - Suppose that two different organs, such as the...Ch. 45 - Many physiological parameters, such as blood Ca2+...
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