Which value of narrow-sense heritability (h2 ) indicates a selection will have a significant impact in altering the initial population?
A) 20 B) 0.20 C) 0.99 D) 99
Answer: C
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A fourth type of restriction enzyme is identified that cleaves at precise locations like a type II enzyme, but it also occasionally makes mistakes and cuts elsewhere. Would this type of enzyme be a useful enzyme to use in molecular cloning?
A. Yes, because it cuts correctly sometimes. B. No, because it is a precise enzyme. C. No, because cutting mistakes could lead to incorrect cloning. D. Yes, because cutting mistakes don't matter in molecular cloning. 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 restriction enzymes? 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?
If the frequency of allele A is .7, using the Hardy-Weinberg formula, what would the frequency of the heterozygous Aa genotype be?
A. .09 B. .3 C. .42 D. .49 E. It cannot be calculated from the information provided.
One of the limiting factors in engineering plants for nitrogen fixation is to prevent the binding of ________ to the enzyme nitrogenase and the subsequent inhibition of the enzyme.
A. calcium B. bacteria C. oxygen D. phosphorus E. cell membranes
Flatworm trematodes that cause ________ (or “snail fever”) rely on transmitting eggs from infected individuals in BOTH feces and urine
a. leishmaniasis b. onchocerciasis c. schistosomiasis d. trichinellosis