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a)What are the ways that bacteria can "control" when and how much RNA is made? (hint: there are at least 3 very different ways)b)Why are bacterial genes often arranged in operons? What is the significance to bacteria? Why don't eukaryotes do this?c)How does eukaryotic chromatin structure influence transcription? Can you name any specific examples?
Estimate the potential problems with a plant effluent that contains a pesticide with an LC50 for fish of 0.01 mg/L at concentrations exceeding 0.01 mg/L.
Think about an experimental Drosophila population containing 5 males and 5 females (2N = 20) in a population. An autosomal locus (gene A) has allele A1 and A2 with frequencies 0.9 and 0.1
What is the primary function of ATP in muscle cell contraction.
Why is the frequency of the sickle-cell gene different in North America versus Africa. Now what is your definition of male and female? This is a 26-year-old female with congenital adrenal hyperplasia. What do you say.
No structures needed but show all the substrates involved in each reaction and the name of the enzyme. Changed mechanism of the transmission of infectious bacterial diseases with examples.
A new reality TV show includes a "contest" to survive solitary confinement. To win, the contestant must remain for 12 hours in an air-tight room that is 5ft X 5ft X 8 ft.
A boy, whose parents and grandparents had normal vision is color blind. What are the genotypes of his mother and his maternal grandparents? (B = normal vision; bb = color blind)
What does glycerol extraction do to muscle?
In a Drosophila virilis salivary gland cell before endomitosis, how many copies of each gene are there in the cell? At the end ofendomitosis, how many copies of each gene are there in the cell?
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?
if the average size of a krill individual is 1.5 cm and its average mass is .5 decigrams, and a blue whale eats up to 3,600 kilograms of krill in one day, how many krill individuals are consumed daily and how many meters of krill?
Compare and contrast vegetative features (i.e., features not directly involved in reproduction) of bryophytes and gymnosperms. For as many differences as possible, explain how the features of gymnosperms allow them to colonize dry environments bet..
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