Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Chapter 2, Problem 2.4PS
Summary Introduction
To determine: The cellular molecules which are soluble in a container of benzene on the basis of the chemical structure of benzene that is given in the question.
Introduction: Benzene is a type of chemical compound which is organic in nature and possesses the chemical formula C6H6. The structure of benzene consists of six carbon atoms that are joined in an aromatic ring with one atom of hydrogen attached to each carbon atom.
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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…
Question #5:
Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The
genes show independent assortment. Recessive alleles at both loci are required for the facultative
apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C.
At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype.
A facultative apomict male, capable of producing viable pollen, was crossed with a sexually
reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic
ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following
temperatures*:
a) 15°C?
b) 25°C?
*for full credit, show crosses and genotypes where appropriate. Remember to position the
female first (left side) in the cross.
Type your answer here:
Chapter 2 Solutions
Becker's World of the Cell (9th Edition)
Ch. 2 - What properties of the carbon atom make it...Ch. 2 - QUESTION: Compare the flights of the ionized...Ch. 2 - How would the properties of water change if the...Ch. 2 - Why is the amphipathic nature of membrane...Ch. 2 - Problem Set CONCEPT CHECK 2.4 What characteristics...Ch. 2 - Problem Set CONCEPT CHECK 2.5 TMV is an...Ch. 2 - The Fitness of Carbon. Each of the properties that...Ch. 2 - The Fitness of Water. For each of these statements...Ch. 2 - Wrong Again. For each of the following false...Ch. 2 - Prob. 2.4PS
Ch. 2 - Drug Targeting. Your company has developed a new...Ch. 2 - Its All About Membranes. Answer each of the...Ch. 2 - The Polarity of Water. Defend the assertion that...Ch. 2 - QUANTITATIVE Bond Energies. A single covalent bond...Ch. 2 - TMV Assembly. Each of these statements is an...Ch. 2 - Mars Is Alive? Imagine this futuristic scenario:...
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