Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 42.4, Problem 1CC
Summary Introduction
To analyze:
With regards to the kin selection, an individual should sacrifice to save one sister or 9 cousins.
Introduction:
According to Hamilton, the altruistic gene is favored by the process of natural selection when
rB>C
Here, r is the coefficient of relatedness,
B is the recipient of the benefits, and
C is the cost of the donor.
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What is the role of chance and direction in determining the phenotype of an organism
What is the selective factor, or selective environment, in the case of sexual selection, that allows individuals with some genotypes to leave more offspring than individuals of other genotypes? Choose the best answer from the available options.
Group of answer choices
A-Sickle-cell disease
B- AIDS
C-Human preference
D-Malaria
E-Female preference
Rehpogs are mythical creatures. They are small and not very smart. Rehpogs live on the ground in a flat,
warm habitat. Their fur texture and color ranges from thick purple fur to thin pink fur, depending on
allele distribution. The dominant fur allele (R) codes for thick purple fur. The recessive allele (r) codes
for thin pink fur. REMEMBER: a phenotype (fur color) is the physical expression of a genotype (two-
letter code for the alleles present in that individual). Each individual has two alleles for fur color:
$
RR genotype is homozygous dominant = Thick purple fur phenotype
Rr genotype is heterozygous = Thick purple fur (because of the presence of one dominant allele)
XX genotype is homozygous recessive = Thin pink fur (because of the absence of a dominant allele)
For the purposes of this experiment, Rehpogs mate once per year and produce two offspring each year.
Rehpogs are monogamous, faithful and fertile.
dictions: On
Part I
A small population of genetically diverse Rehpogs…
Chapter 42 Solutions
Principles of Biology
Ch. 42.1 - Prob. 1CCCh. 42.1 - Prob. 1BCCh. 42.1 - Prob. 2CCCh. 42.1 - Prob. 1TYKCh. 42.1 - Prob. 2TYKCh. 42.1 - Prob. 3TYKCh. 42.2 - Most terrestrial mammals are nocturnal. This means...Ch. 42.3 - Prob. 1CCCh. 42.3 - Prob. 1TYKCh. 42.3 - Prob. 2TYK
Ch. 42.3 - Prob. 3TYKCh. 42.4 - Prob. 1CCCh. 42.4 - Prob. 2CCCh. 42.4 - Prob. 1TYKCh. 42.4 - Prob. 2TYKCh. 42.5 - Prob. 1TYKCh. 42.5 - Prob. 2TYKCh. 42 - Prob. 1TYCh. 42 - Prob. 2TYCh. 42 - Prob. 3TYCh. 42 - Prob. 4TYCh. 42 - Prob. 5TYCh. 42 - Prob. 6TYCh. 42 - Prob. 7TYCh. 42 - Prob. 8TYCh. 42 - Prob. 9TYCh. 42 - Prob. 10TYCh. 42 - Prob. 1CCQCh. 42 - Prob. 2CCQCh. 42 - Prob. 3CCQCh. 42 - Prob. 1CBQCh. 42 - Prob. 2CBQ
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