After replication of a DNA molecule is completed, two molecules are present: the original DNA and a
newly synthesized DNA. Indicate whether the statement is true or false.
F
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What determines the rate of CO2 diffusion into a leaf?
A. the concentration gradient B. the rate at which photosynthesis is occurring C. both the concentration gradient and the rate at which photosynthesis is occurring D. the rate of respiration
Crop sunflowers are attacked by many fungal pathogens, such as downy mildew and Sclerotinia, resulting in economic losses of millions of dollars per year. What genes would be best to target for the development of new fungus-killing crop treatments (fungicides)?
A. Genes encoding chitin proteins that are shared by downy mildew and Sclerotinia, but absent in sunflower and humans. B. Genes encoding growth proteins that are shared by downy mildew, Sclerotinia, and sunflower, but absent in humans. C. Genes encoding metabolite proteins that are shared by downy mildew, Sclerotinia, and humans, but absent in sunflower. D. Genes encoding basic development proteins that are shared by downy mildew, Sclerotinia, sunflower, and humans. 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 already know about drug development? 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?
Based on the concept map only, which of the following is most likely to be true of microbial metabolism?
a. The Krebs cycle produces molecules necessary for function of the electron transport chain. b. The energy from 2 ATP is necessary to drive the electron transport chain. c. Acetyl-CoA is converted directly into 2 ATP d. Acetyl-CoA is produced by substrate-level phosphorylation.
Answer the following questions true (T) or false (F)
1. Double fertilization occurs within the embryo sac in the carpels of angiosperms. 2. The fruit that surrounds a seed provides the primary nourishment for the germinating embryo. 3. Although they may look different, all fruits come from one carpel and produce one seed.