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A cola bean plant has been recently discbered that also produceshigh levels of caffeine. The flavors prodcued by the oil form thesebeans are a potential gold mine. In order to develop thisflavoring oil for sale in the industry you are assigned thetask of producig a pure breeding line of the cafeine producing colabean plants. Cola bea plants are rather difficult to grw and due toprevious selective breeding usually only produce about 25 seeds perbean. The first cros attempted is between a caffeine producingplant and a normal plant. This results in only about half theplants carrying the caffeine producing trait. Next two caffeineproducing plants are crossed resulting in 12 plants that producecaffeine and 7 normal. Repeated attempts with the same crossproduce similar results. Explain the underlying geneticprinciple and specific results both phenotypically and genotypically.
(Is this problem related to quasidominance or lethal alleles)
In another population of butterflies, you do a survey and find that out of 5000 individuals you examine, only 4 had curly antennae. What would you expect the frequency of heterozygotes to be in this population? What about the frequency of homozygo..
If a 100X solution is 1 M, what is the concentration of a 1X solution? Explain how you would prepare 100 mL of a 0.5 percent w/v agarose in 1X TAE buffer starting with a 20X TAE stock solution and solid agarose powder.
Determine some of the differences that sun and shade leaves share? What does this say about the adaptations they've made to survive intheir respective environments?
What is the function of ribosomes in the rough ER.
The gene for sickle-cell anemia exhibits heterozygote advantage. An individual who is an HB-A/HB-s heterozygote has increased resistance to malaria and therefore has greater fitness than the HB-A/HB-A homozygote, who is susceptivle to malaria, and..
Explain how an enzyme catalyzes a reaction. what are the three main steps of the cycle of enzyme-substrate interactions.
If the difference between the gibbs free energy of the products and the gibbs free energy of reactants
What does DNA helicase do and what kind of bond does DNA helicase break?what does DNA gyrase do and what kind of bond does DNA gyrase break?
A patient with hepatitis B has reduced liver function. How will reduced function of her liver affect levels of hormones in her blood or urine?
describe the general structure of a phospholipid molecule and what makes it suitable as a major component of plasma membrane?
How and when do the molecules produced by adipocytes result in adverse consequences which are associated with obesity?
Why is energy from fusion reactors, dissimilar that from fission reactors, so attractive from an environmental perspective. Consider the HIV enzyme called protease. The amino acid residues at the active site are highly hydrophobic.
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