In which year was the sequencing of the
human genome completed?
a. 2003
b. 2001
c. 1999
d. 1997
e. 1995
A
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A molecule that closely resembles the shape of a substrate for an enzyme would most likely serve as a
A. noncompetitive inhibitor. B. allosteric inhibitor. C. competitive inhibitor. D. allosteric activator. 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 enzymes and inhibition? What other information is related to the question? Choose Answer Do you have all the information needed to answer the question? 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?
BamHI is a Type II restriction enzyme that recognizes the sequence 5' G*GATCC 3', and cuts between the two Gs, leaving a 5' overhang. If you were to digest DNA with BamHI, what would be the sequence of the overhanging sticky ends of the two strands?
A. 5' GATCC 3' and 5' GATCC 3' B. 5' GATCC 3' and 5' GGATC 3' C. 5' GATC 3' and 5' GATC 3' D. 5' GATC 3' and 5' CTAG 3' E. 5' G 3' and 5' G 3' F. 5' G 3' and 5' C 3' 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 · Consider the different answer options. Which can you rule out? 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?
Women with breast cancers that are estrogen-sensitive ____
a. become ill when taking prescription estrogen b. can exacerbate their symptoms with only a small increase in estrogen levels c. are in danger of faster growth of cancer cells in the presence of estrogen d. will often experience cancer remission with increased uptake of estrogen e. do not produce their own estrogen and must obtain it through diet or supplements
The first photosynthetic organisms to obtain hydrogen by splitting water were the cyanobacteria
__________ Indicate whether the statement is true or false.