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During transcription DNA is transcribed into an hnRNA or pre-RNA molecule. Which of the following statements about the relationship between hnRNA and mRNA is true? A. There is no relationship between the size of hnRNA and mRNA B. hnRNA is always smaller than mRNA C. hnRNA is always larger than mRNA D. hnRNA and mRNA are typically the same size E. Both hnRNA and mRNA have intros and exons.
give the main functions of microfilaments in the cell.
3rd-base wobble allows some tRNAs to recognize more than one mRNA codon. Determine the minimal number of tRNA molecules necessary to recognize the following amino acids?
Cross between pure red tomato and yellow tomato made all red F1 progeny. From the F2 progeny of 400 plants, 90 were yellow. Hypothesize that a single pair of allele is involved such that Y- = Red and yy = Yellow. Test this hypothesis using Chi squ..
A mammal uses only one to two percent of its energy in ventilation as a fish must spend about 15 percent of its energy to move water over its gills. Explain this huge difference in their efforts to collect oxygen.
Discuss the similarities and differences between fungi and protists. How do both of these kingdoms differ from the kingdom Eubacteria?
Since a doughnut contains a large quantity of energy that can become available for our metabolism when eaten, why isn't the doughnut "jumping" all over the counter or hot to the touch.
Describe the b cell response or humoral circulating immunity. Include the activation of b cell,clonal expansion, antibody production, b plasma and memory cells.
Draw a dichotomous key to use in the identification of your unknown. Our strains will be grown on solid media, so cell arrangement will probably not be diagnostic.Notice that the objective is to use the tests .
A microscope has a field diameter of 2,000 microns under a total low power magnification of 100 X. This microscope has a 10X power ocular. Given this information, reply the following questions that appear below.
Determine what kind of energy storage molecule would you most likely find in the highest quantity in the seed of a plant? please explain why it would be this type of molecule in one sentence.
The flagellated protest Giardia does not have true mitochondria but does have organelles called mitosomes. Determine what features would you look for to test the hypothesis that mitososmes are derived from mitochondria?
What were the components of the pectoral girdle in early fishes and how has it changed in tetrapods? Specifically, what is the typical fate of the coracoids and clavicle in the tetrapod girdle?
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