What is Life? A Guide to Biology
3rd Edition
ISBN: 9781464135958
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Chapter 18, Problem 13SA
Summary Introduction
To analyze:
How is it possible for a seed to grow underground, in the dark, when we know that plants make their food by photosynthesis, which requires light?
Introduction:
Seed remain in the dormant stage until the abiotic factors are favorable for the germination and subsequent growth. In the abiotic factors like water, temperature, and oxygen conditions are very essential for germination and growth.
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How many types of reactions can an enzyme perform?
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 18 Solutions
What is Life? A Guide to Biology
Ch. 18 - Prob. 1SACh. 18 - Prob. 2SACh. 18 - Prob. 3SACh. 18 - Prob. 4SACh. 18 - Prob. 5SACh. 18 - Prob. 6SACh. 18 - Prob. 7SACh. 18 - Prob. 8SACh. 18 - Prob. 9SACh. 18 - Prob. 10SA
Ch. 18 - Prob. 11SACh. 18 - Prob. 12SACh. 18 - Prob. 13SACh. 18 - Prob. 14SACh. 18 - Prob. 15SACh. 18 - Prob. 16SACh. 18 - Prob. 1MCCh. 18 - Prob. 2MCCh. 18 - Prob. 3MCCh. 18 - Prob. 4MCCh. 18 - Prob. 5MCCh. 18 - Prob. 6MCCh. 18 - Prob. 7MCCh. 18 - Prob. 8MCCh. 18 - Prob. 9MCCh. 18 - Prob. 10MCCh. 18 - Prob. 11MCCh. 18 - Prob. 12MCCh. 18 - Prob. 13MCCh. 18 - Prob. 14MCCh. 18 - Prob. 15MC
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