Which of the following is a possible intermediate during pre-rRNA processing?
a. An RNA molecule containing 18S + 5.8S rRNAs
b. An RNA molecule containing 5.8S + 28S rRNAs
c. An RNA molecule containing 5S + 28S rRNAs
d. An RNA molecule containing 18S + 28S rRNAs
Ans: d. An RNA molecule containing 18S + 28S rRNAs
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The drug Taxol, or Paclitaxel, is used to treat patients with a variety of cancers, including breast, lung and ovarian cancers. The drug works by stabilizing microtubules, and preventing their disassembly. The goal of the drug is to prevent dividing cells from being able to complete mitosis. As a result, cancerous cells can no longer divide. In a cell treated with Taxol, at what stage of mitosis will the cells arrest?
A. Prior to metaphase B. Anaphase C. Telophase D. Cytokinesis Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about movement of chromosomes in mitosis? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The time it takes for a freshly inoculated agar culture to develop visible colonies is primarily governed by the generation time of that species.
Answer the following statement true (T) or false (F)
Characterized by permafrost and low, shrubby plants, ________ can be found nearest the poles.
A. chaparral B. tundra C. temperate deciduous forests D. taiga
What is an endergonic reaction?
What will be an ideal response?