In this study, genetic susceptibility likely means
a. the dogs’ genes are promoting cancer.
b. they do not have any functional tumor suppressor cells.
c. that additional mutations occur very quickly, leading to cancer.
d. there is a mutation in one of the genes associated with cell division
D
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You are examining an electron micrograph of cells obtained from a new deep-sea life form. Upon closer examination, you notice that there are two dark lines separated by a lightly stained region. These results are similar to the observation of which investigator(s) of membrane structure?
A) Robertson B) Gorter and Grendel C) Unwin and Henderson D) Overton E) Singer and Nicolson
Plant hormones bind specific cellular receptor molecules that trigger gene expression responses. Which statement is correct concerning these responses?
A. Only cells lacking receptors can bind hormones. B. Only cells in the meristem can respond. C. Only cells that express the appropriate receptors can bind hormones. D. Only cells that have been previously activated can bind hormones. E. None of these choices is correct.
What is gene regulation that occurs in a eukaryotic organism when the DNA is uncoiled and loosened from nucleosomes to bind transcription factors called?
a. epigenetic level of regulation b. post-transcriptional level of regulation c. translational level of regulation d. post-translational level of regulation
Which of the following catalyzes biochemical reactions?
a. Enzyme b. Glucose c. Substrate d. Protein