Tetherin is a protein encoded in the human genome. Based on what you know about the interaction between Vpu and tetherin, what do you predict the broad cellular function of tetherin is?
A. To keep HIV particles in place until they are ready to bud
B. To stop the spread of HIV in the body by inhibiting HIV release
C. To help in HIV assembly
D. To help with the maturation of HIV particles
B
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Before biologists discovered the role of DNA and chromosomes, Gregor Mendel, a scientific researcher, studied the genetics of pea plants related to flower colors, pea colors, pea pod shapes, and other features of the plant. He numerically modeled the results he observed and published results, which eventually led to our basic understanding of how biological traits are passed to new generations of organisms. His work, however, was largely rejected for over 30 years, partly for minor record-keeping errors, and partly for the new approach of defining reproduction of organisms in terms of numerical probabilities. This demonstrates that
A. only the most recent scientific investigations on a topic are useful in understanding biological conditions or processes. B. Gregor Mendel's work wasn't valid until researchers later identified chromosomes and their role in reproduction. C. a unique, new way to propose a theory discredits the research until someone else proves findings to be true. D. the color and shape of peas was not important to the scientific community. E. scientific evidence is harder to accept because of cultural biases and misunderstandings on the topic.
The understanding of the significance of a stimulus is ____
a. threshold b. sensation c. transduction d. perception e. action potential
A scientist measures the temperature of a lake at various depths and finds very little variation between temperatures at the surface and at the bottom of the lake. The temperature measurements were most likely taken in a
A) temperate lake during summer. B) temperate lake during winter. C) tropical lake during summer. D) tropical lake during winter.
Within any ecosystem, the two major food chains are the ________ food chain and the grazing food chain
Fill in the blank(s) with correct word