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A mutation that inactivates a regulatory protein that normally prevents transcription of a gene is said to be trans-acting. Will this type of mutation affect the copy of this gene on the other chromosome?
Explain what is meant through a negative feedback loop and how these work in terms of regulating a metabolic pathway. provide an example of a negative feedback loop in the glycolytic pathway.
Think about an interaction between two mutually-inhibiting proteins with concentrations x and y, given through the differential equations.
DNAase is an enzyme that catalyzes the hydrolysis of covalent bonds that join nucleotides together. What will first happen to DNA molecules treated with DNAase.
Draw the tripeptide His Glu Ala, with charges, at pH 5. Recognize the C-terminus, the N-terminus, a peptide bond.
Butterflies are typical diploid eukaryotes with the following inherited situations, True-breeding c s o are crossed to c+ s+ o+ to produce F1 progeny
Dogs (Canis lupus familiaris) and gray wolves (Canis lupus) can interbreed to produce viable, fertile offspring. These species shared a common ancestor recently.
Albinism is an autosomal recessive trait in the clouded salamander (Aneides ferreus). In the main cave population at Oregon Caves National Monument, 100 salamanders are albino while 900 individuals are not (891 AA and 9 Aa). Assume that this popul..
Some human pathogenic bacteria are resistant to most antibiotics. How would you prove a bacterium is resistant to antibiotics using laboratory culture techniques?
Ion concentrations have a impact on whether there is dissolution of minerals. Microorganisms can alter the charges on their cell surfaces to enhance these processes.
A karyotypically normal couple has a child with trisomy twenty-one Down syndrome. DNA analysis if 21q polymorphic markers reveals the following results.
Describe at least 3 ways the cell regulates protein activity and at least 4 other common post- translational modification.
Both an Alpha receptor antagonist and a beta receptor antagonist can be used to treat high blood pressure (hypertension). What is transduction
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