You are a physician treating a patient with cancer. Traditional chemotherapy has not been working on this patient, so you prescribe a new class of drugs called taxanes, which inhibit microtubule function. Your patient asks you how they work. How would
you explain to your patient how these drugs work?
What will be an ideal response?
Microtubules are involved in moving chromosomes around during cell division. Taxanes are a class of drugs that interfere with the microtubules, preventing them from moving chromosomes, which stops cell division. Cancer is unregulated cell growth, so stopping cell division stops the growth of the cancer.
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In the process of biological evolution, new species may evolve through exchange of genes from one species to another. This process is called
In the process of biological evolution, new species may evolve through exchange of genes from one species to another. This process is called
What is the ultimate fate of oxygen gas (O2) in cellular respiration?
a. It is respired as CO2. b. It is converted to water. c. It is attached to glucose. d. It is attached to pyruvate. e. It accepts electrons in glycolysis.
Suppose a hemophilic male (X-linked recessive allele) and a female carrier for the hemophilic trait
have a nonhemophilic daughter with Turner syndrome. Nondisjunction could have occurred in a. both parents. b. neither parent. c. the father only. d. the mother only. e. It is not possible to determine from the data given.
What substance causes yeast bread to rise?
A. alcohol B. lactic acid C. sugar D. carbon dioxide E. oxygen