Identify the dependent variable in the experiment whose data are shown in the figure above. Identify the negative control group in experiment. Justify the use of breakfast cereal for each population ... .

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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1.
Flour beetles, Tribolium castaneum, are easy to keep and widely used
as laboratory animals. They consume wheat and other grains while
being adapted to survive in very dry environments. The flour beetles
are major pests in the agricultural industry, in particular cereal silos,
and are highly resistant to insecticides.
An experiment was conducted over 20 generations using different
populations of flour beetles over 20 generations. Using breakfast cereal
as a food source, two different populations of 10 (figure 1) and 100
(figure 2) were studied with each beetle being heterozygous for alleles
b+ and b alleles. The frequency of the b+ allele was measured in the
population after every generation.
100%
100%
50%
50%
20
16
20
generations
generations
gure 1. Population of 10 flour beetles over 20 generations
Figure 2. Population of 100 flour beetles over 20
generations
Frequency of b+ allele
Frequency of b+ allele
Transcribed Image Text:1. Flour beetles, Tribolium castaneum, are easy to keep and widely used as laboratory animals. They consume wheat and other grains while being adapted to survive in very dry environments. The flour beetles are major pests in the agricultural industry, in particular cereal silos, and are highly resistant to insecticides. An experiment was conducted over 20 generations using different populations of flour beetles over 20 generations. Using breakfast cereal as a food source, two different populations of 10 (figure 1) and 100 (figure 2) were studied with each beetle being heterozygous for alleles b+ and b alleles. The frequency of the b+ allele was measured in the population after every generation. 100% 100% 50% 50% 20 16 20 generations generations gure 1. Population of 10 flour beetles over 20 generations Figure 2. Population of 100 flour beetles over 20 generations Frequency of b+ allele Frequency of b+ allele
b.
Identify the dependent variable in the experiment whose data are
shown in the figure above. Identify the negative control group in
experiment. Justify the use of breakfast cereal for each population.
Transcribed Image Text:b. Identify the dependent variable in the experiment whose data are shown in the figure above. Identify the negative control group in experiment. Justify the use of breakfast cereal for each population.
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