BIOLOGY (LL)
5th Edition
ISBN: 9781264115495
Author: BROOKER
Publisher: MCG
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Chapter 11.2, Problem 2CS
Summary Introduction
To sketch: A model showing base pairing of O6-MeG and cytosine.
Introduction: DNA or deoxyribonucleic acid is a
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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?
None
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 11 Solutions
BIOLOGY (LL)
Ch. 11.1 - Prob. 1CSCh. 11.1 - Prob. 1EQCh. 11.1 - Prob. 2EQCh. 11.1 - CoreSKILL In the experiment of Avery, MacLeod,...Ch. 11.2 - Prob. 1CCCh. 11.2 - Prob. 2CCCh. 11.2 - Core Skill: Modeling The goal of this modeling...Ch. 11.2 - Prob. 2CSCh. 11.3 - If this experiment was conducted for four rounds...Ch. 11.4 - Molecular Mechanism of DNA Replication Concept...
Ch. 11.4 - Prob. 2CCCh. 11.4 - Prob. 3CCCh. 11.4 - Prob. 4CCCh. 11.5 - Prob. 1CCCh. 11.5 - Prob. 1CSCh. 11 - Why did researchers initially believe that the...Ch. 11 - Prob. 2TYCh. 11 - Which of the following equations is accurate...Ch. 11 - Prob. 4TYCh. 11 - Which of the following statements about the...Ch. 11 - Meselson and Stahl were able to demonstrate...Ch. 11 - During replication of a DNA molecule, the daughter...Ch. 11 - Prob. 8TYCh. 11 - A nucleosome is a. a dark-staining body composed...Ch. 11 - The conversion of euchromatin into heterochromatin...Ch. 11 - What are the four key criteria that the genetic...Ch. 11 - A double-stranded DNA molecule contains 560...Ch. 11 - Prob. 3CQCh. 11 - Prob. 1COQCh. 11 - CoreSKILL How might you provide evidence that DNA...
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- 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:arrow_forwarda. 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 involvedarrow_forwardIf you wanted to reduce the difference between peak and trough levels that occur with repeated administration of a drug, how would you adjust the dose and dose interval without changing the plateau concentration (plateau is the average of peak and trough levels)? Select your answers for both dose and interval. Hint: It may be helpful to think about this problem using an example such as food. How would you eat if you wanted to maintain very steady hunger/satiety levels without changing your total caloric intake? Options: A. Dose; Increase dose B. Dose; Decrease dose C. Dose; Do not change dose D. Interval; Increase the interval between doses (give the drug less frequently) E. Interval; Decrease the interval between doses (give the drug more frequently) F. Interval; Do not change the intervalarrow_forward
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- why are native freshwater mussels are an important part of great lakes ecosystemarrow_forwardwhat morphological features differentiate the lamprey species and other species in the great lakesarrow_forwardThere are a wide range of therapeutic applications available as options for patients. Medical professionals should be aware of these applications so they can make informed recommendations to patients. To gain a better understanding of some therapeutic applications and how they are related to RNA and mRNA, research long non-coding RNA. Respond to the following in a minimum of 175 words: What is lncRNA and what does it do? How does IncRNA differ from mRNA? What are some therapeutic applications associated with lncRNA? Think about possible future uses of this application. What are the advantages and disadvantages of this application and its continued use?arrow_forward
- four fish or mussel species that are native to the great lakesarrow_forwardThere are a wide range of therapeutic applications available as options for patients. Medical professionals should be aware of these applications so they can make informed recommendations to patients. To gain a better understanding of some therapeutic applications and how they are related to RNA and mRNA, research long non-coding RNA. Respond to the following in a minimum of 175 words: What is lncRNA and what does it do? How does IncRNA differ from mRNA? What are some therapeutic applications associated with lncRNA? Think about possible future uses of this application. What are the advantages and disadvantages of this application and its continued use?arrow_forwardfour physial characteristics of a fish or a mussel that would help you identify it to a speciesarrow_forward
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