Prescott's Microbiology
10th Edition
ISBN: 9781259281594
Author: Joanne Willey, Linda Sherwood Adjunt Professor Lecturer, Christopher J. Woolverton Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 1.4, Problem 4RIA
Retrieve, Infer, Apply
4. Log all the microbial products you use in a week. Be sure to consider all foods and medications (including vitamins).
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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 1 Solutions
Prescott's Microbiology
Ch. 1.1 - Retrieve, Infer, Apply 1. How did the methods used...Ch. 1.1 - Prob. 2RIACh. 1.1 - Prob. 1MICh. 1.1 - MICRO INQUIRY How many of the taxa listed in the...Ch. 1.2 - Retrieve, Infer, Apply 1. List two reasons RNA is...Ch. 1.2 - Retrieve, Infer, Apply 2. Explain the...Ch. 1.2 - Retrieve, Infer, Apply 3. What is the difference...Ch. 1.2 - Prob. 4RIACh. 1.2 - MICRO INQUIRY Why ore the probionts pictured above...Ch. 1.2 - MICRO INQUIRY Why does the branch length indicate...
Ch. 1.3 - Retrieve, Infer, Apply 1. What does the theory of...Ch. 1.3 - Retrieve, Infer, Apply 2. What did Pasteur prove...Ch. 1.3 - Prob. 2.1RIACh. 1.3 - Prob. 2.2RIACh. 1.3 - Prob. 3.1RIACh. 1.3 - Retrieve, Infer, Apply 2. How did Winogradsky and...Ch. 1.3 - Retrieve, Infer, Apply 3. How might the work of...Ch. 1.4 - Retrieve, Infer, Apply 1. Since the 1970s,...Ch. 1.4 - Retrieve, Infer, Apply 2. What is metagenomics?...Ch. 1.4 - Retrieve, Infer, Apply 3. Briefly describe the...Ch. 1.4 - Retrieve, Infer, Apply 4. Log all the microbial...Ch. 1.4 - Retrieve, Infer, Apply 5. List all the activities...Ch. 1 - Compare, Hypothesize, Invent 1. Microscopic...Ch. 1 - Compare, Hypothesize, Invent 2. Why arent viruses,...Ch. 1 - Compare, Hypothesize, Invent 3. Why was the belief...Ch. 1 - Compare, Hypothesize, Invent 4. Would microbiology...Ch. 1 - Compare, Hypothesize, Invent 5. Some individuals...Ch. 1 - Prob. 6CHICh. 1 - Prob. 7CHICh. 1 - Prob. 8CHICh. 1 - Compare, Hypothesize, Invent 9. Consider the...Ch. 1 - Compare, Hypothesize, Invent 10. Support this...Ch. 1 - Compare, Hypothesize, Invent 11. Scientists are...
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