Biology: Life on Earth
10th Edition
ISBN: 9780321729712
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: Benjamin Cummings
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Chapter 30, Problem 2RQ
Summary Introduction
To review:
The three different levels of biodiversity and the importance of each level.
Introduction:
Biodiversity can be described as the variety and variability found in the different forms of life on the earth. It also includes the genetic information present in the life forms and the ecosystem formed by the organisms. Biodiversity is classified into three levels: genetic diversity, species diversity, and ecosystem diversity.
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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 30 Solutions
Biology: Life on Earth
Ch. 30 - Prob. 1FTBCh. 30 -
2. Products or processes by which functioning...Ch. 30 - Many of the benefits that humans derive from...Ch. 30 - Prob. 4FTBCh. 30 -
5. The smallest population of a species that is...Ch. 30 -
6. A Native American saying tells us that “We do...Ch. 30 - Prob. 1RQCh. 30 - Prob. 2RQCh. 30 - What is ecological economics? Why is it important?Ch. 30 - List the types of goods and services that natural...
Ch. 30 -
4. What five specific threats to biodiversity are...Ch. 30 - Why are efforts to protect monarch butterflies a...Ch. 30 - BioEthics What are the ethical foundations of...Ch. 30 - List some reasons that the ecological footprints...Ch. 30 -
2. Search for and describe some examples of...Ch. 30 - Identify a dense suburban development near your...Ch. 30 - What economic arguments would conventional farmers...
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