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Dr. Ara B. Dopsis and Dr. C. Ellie Gans are performing genetic crosses on daisy plants. They self-fertilize a blueflowered daisy and grow 100 progeny plants that consist of 55 blue-flowered plants, 22 purple-flowered plants, and 23 white-flowered plants. Dr. Dopsis believes this is the result of segregation of two alleles at one locus and that the progeny ratio is 1:2:1. Dr. Gans thinks the progeny phenotypes are the result of two epistatic genes and that the ratio is 9:3:4.The two scientists ask you to resolve their conflict by performing chi-square analysis on the data for both proposed genetic mechanisms:
1) Calculate the chi-square value for hypothesis of segregation of two alleles at one locus.
2) Calculate the chi-square value for hypothesis of interaction of two epistatic genes.
As a pea plant grows, its root cells divide by mitosis. If the diploid chromosome number of the plant is fourteen, how various chromosomes will each newly formed root cell have.
Complete the following table titled 'Applications of Different Observational Study Designs' indicating for every objective under the pertinent study design if objective is 'suitable' or 'not suitable'.
Puromycin is a powerful inhibitor of protein synthesis. It is an analog of the three end of aminoacyl tRNA. When puromycin is added to a cell-free system having all the necessary machinery for protein synthesis,
The child is running a fever, has fflu-like symptoms, and his lymph glands are very swollen and sore to the touch. Of what importance are the swollen and sore lymph glands.
Roges Staubauch has severe arthritis and has been taking prednisone for two months. He isn't feeling well, complains of repeated colds, and has become really puff in his appearance. What is the reason for this symptoms.
A porcupine eats 3,000 J of plant material. 1,600 J is indigestible and is eliminated as feces. 1,300 J are used in cellular respiration. What is the estimated production efficiency of this animal.
When digested DNA is analysed using agarose gel electrophoresis the total size of fragments sometimes does not add up to the size of the original DNA molecule. How can this be explained and how can this be seen in ethidium bromide stained agarose ..
Which extinct species should be the best candidate to serve as the out-group for clade whose common ancestor occurs at position 2.
Many processes are involved in creating the Resting membrane potential.” Describe the ion and concentration FORCES or PROCESSES that are involved in determining the resting membrane potential.
What is the dissimilarity between exergonic and endergonic reactions? Give an instance of each. What is the significance of each type of reaction.
give difference between the free energy change for a reation and the standard free energy change (delta-G°') for the reaction.
Many bacteria are anaerobic. If bacterium were to produce the same amount of ATP within a minute as a cell extracted from your skeletal muscle, what would that bacterium have to do?
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