Which of the following structures would not be found in cells of a plant's roots?
a. mitochondria
b. chloroplasts
c. endoplasmic reticulum
d. nucleus
e. Golgi complex
B
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Which type of tropism will cause a plant to orient part of its body in order to maximize exposure to blue light? a. Phototropism b. Gravitropism c. None of these choices
d. Thigmotropism e. Solar tracking
What would happen to immunoglobulin genes if alternative mRNA splicing was nonfunctional?
A. Transcripts would contain a single V region only. B. Transcripts would contain all possible V, D, J, and constant regions. C. Transcripts would have extra V, D, and J segments attached to a single constant region. D. Transcripts would have single V and D segments, but extra J segments and constant regions. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about mRNA splicing? What other information is related to the question? Choose Answer Given what you now know, what information 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?
Which of the following is NOT an end-product of digestion?
a. glucose b. polysaccharides c. amino acids d. fatty acids e. nucleotide bases
When a population goes through a bottleneck, ____.
A. genetic drift is likely to occur B. mutation rates increase C. extinction rates decrease D. natural selection decreases in intensity E. inbreeding decreases