Review_structure_ptn_DNA Quiz

Review_structure_ptn_DNA Quiz - Question 1 of 16 0.5/ 0.5...

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Question 1 of 16 0.5/ 0.5 Points The sugar ribose can be differentiated from the sugar deoxyribose by  determining whether a hydroxyl (-OH) is attached to which carbon of the sugar? A. a. Carbon #1 B. Carbon #2 Feedback: Correct! Examine figure 11.1 in the text. Oxygen forms one corner of the pentose ring; the fifth carbon of the sugar is above the surface of the ring. Carbon #1 is beside the oxygen, and is where the nitrogenous base is attached. In a ribose sugar, carbon #2 has an -OH attached; there is no oxygen attached to carbon #2 in deoxyribose. C. Carbon #3 D. Carbon #4 Answer Key: B Question 2 of 16 0.5/ 0.5 Points I n science, a theory is simply an educated guess as to how something works, or  what causes a particular phenomenon. True False Answer Key: False Feedback: You're right! While lay people may use the word 'theory' to mean an  educated guess, scientists use the word 'hypothesis' in this context. A theory in  science is MUCH more than an educated guess -- a theory has been rigorously  tested, and is a big enough idea that it has predictive value.
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Question 3 of 16 0.5/ 0.5 Points What level of structure is NOT affected when a protein denatures? A. Primary B. Secondary C. Tertiary D. Quaternary Answer Key: A Question 4 of 16 0.5/ 0.5 Points When double-stranded DNA is heated, it 'melts' into two single-stranded  molecules. Where would the melting begin in a linear DNA molecule? A. Anywhere that A to T bonds are found, because there are only 2 hydrogen bonds between A and T. B. The melting will happen along the entire length of the DNA simultaneously. C. The melting will first affect the
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This note was uploaded on 03/08/2011 for the course BIS 2A taught by Professor Grossberg during the Fall '08 term at UC Davis.

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Review_structure_ptn_DNA Quiz - Question 1 of 16 0.5/ 0.5...

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