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Two extensively inbred strains of summer squash - designated "crookneck" and "scallop" - are crossed. The length of fruit in the crookneck averages 40 cm and that in the scallop averages 7 cm. In the F1 generation of the cross crookneck X scallop, the average fruit length was 18 cm and the variance in fruit length was 11 cm2. In the F2 generation obtained from the crossF1 X F1 and grown under the same conditions, the variance in fruit length was 70 cm2. a. What is the standard deviation of the fruit length in the F2 generation?b. What is the magnitude of the environmental variance in the F2 generation?c. What is the magnitude of the genotypic variance in the F2 population?d. What is the broad-sense heritability of fruit length in the F2 population?e. Are most differences in fruit length in the F2 generation due to differences in genotype among the plants or to differences in environment?
Make a short essay on mechanisms by which redox reactions in mitochondria lead to the production of ATP by phosporylation of ADP to ATP
Explain the process of prokaryotic replication. Pay particular attention to the early stages. In your work, be sure to include the origin of replication, DnaA, components.
Most of us can't even imagine a world without oxygen. Though, as you learned earlier, chemically oxygen is a powerful oxidizing compound. What effect(s) would the increase in oxygen levels of atmosphere have on the organisms that existed at that time..
A clinical trial is organized to compare an experimental medication designed to lower blood pressure to a placebo. Before starting the trial, a pilot study is conducted involving ten participants.
Cytopathic and non-cytopathic viruses elicit very different immune responses. The primary determining factor in the type of immune response to a viral infection is which of the following (select one)?Answer
Describe the kind of feedback system involved in the heating system in your body using these key phrases: regulators, monitors and the coordination centre.
Steve is in the midst of his Microbe experiment. He is increasing mold on a piece of peach. After five days in the baggie, the mold covers 88 square millimeters of the peach surface.
A forty-five year old woman goes to the primary care physician with abdmonal pain, nausea, and non - bloody diarrhea. A gram stain of a stool sample presents with gram negative rods.
How may this capacity be an advantage to the cell.
Give a functional definition of a eukaryotic gene. Please include all parts of a eukaryotic gene and what the function of each element is.what are a lytic and a lysogenic bacteriophage.
Determine the forces that cause the change in filtration rate as plasma passes through the capillary?
Can you describe to me the process of inhalation and exhalation and all of the muscles involved.
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