Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 3.11PS
Telling Them Apart. For each of the following pairs of molecules, specify a property that would distinguish between them, and indicate two different tests that could be used to make that distinction:
(a) The protein insulin and the DNA in the gene that encodes insulin
(b) The DNA that encodes insulin and the messenger RNA for insulin
(c) Starch and cellulose
(d) Amylose and amylopectin
(e) The monomeric protein myoglobin and the tetrameric protein hemoglobin
(f) A triacylglycerol and a phospholipid with a very similar fatty acid content
(g) A glycolipid and a sphingolipid
(h) A bacterial cell wall polysaccharide and chitin
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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:
a. What percentage of a drug is eliminated after 4 half-lives? Please round to the nearest percent.
b. What will happen to elimination of the drug in the previous question if the system is saturated? explain and show any math involved
Chapter 3 Solutions
Becker's World of the Cell (9th Edition)
Ch. 3 - What structural features of protein molecules...Ch. 3 - Prob. 3.1CCCh. 3 - Like proteins, nucleotides are important...Ch. 3 - Polysaccharides are also important macromolecules...Ch. 3 - Prob. 3.4CCCh. 3 - Polymers and Their Properties. For each of the six...Ch. 3 - Stability of Protein Structure. Several different...Ch. 3 - Prob. 3.3PSCh. 3 - Prob. 3.4PSCh. 3 - Hair Versus Silk. The a-keratin of human hair is a...
Ch. 3 - The Permanent Wave That Isnt. The permanent wave...Ch. 3 - Features of Nucleic Acids. For each of the...Ch. 3 - Wrong Again. For each of the following false...Ch. 3 - Prob. 3.9PSCh. 3 - Prob. 3.10PSCh. 3 - Telling Them Apart. For each of the following...Ch. 3 - Prob. 3.12PSCh. 3 - Prob. 3.13PSCh. 3 - QUANTITATIVE Thinking About Lipids. You should be...Ch. 3 - Shortening. A popular brand of shortening has a...
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