Suppose that a 40-residue segment of a protein folds into a two-stranded antiparallel β structure with a 4-residue hairpin turn. What is the longest dimension of this motif?

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#Question id: 3293

#Unit 11. Evolution and Behavior

In a Hardy-Weinberg population of butterflies find that 32% are heterozygous at a particular locus. What should be the frequency of the homozygous individuals in this population?

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#Question id: 653

#Unit 1. Molecules and their Interaction Relevant to Biology

For the enzyme-catalyzed reaction S ~ P, Keq = 5, which of the following curves best represents the change in [S] that occurs with time when S is added to a solution containing the appropriate enzyme?

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#Question id: 2931

#Unit 2. Cellular Organization

Which of the following is a substrate of Cln3-Cdc28?

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#Question id: 2898

#Unit 2. Cellular Organization

The human genome is composed of many different types of DNA sequences, the majority of which do not encode proteins. From the following distribution and amount of each of the various types of sequences determine which of these is CORRECTLY expressed?

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#Question id: 34109

#Unit 2. Cellular Organization

A. The chromocenter of polytene chromosome consists largely of heterochromatin

B. The chromocenter of polytene chromosome that consists largely of euchromatin

C. Chromocenter is all four chromosomes of D. melanogaster aggregate

D. Polytene chromosome are formed by a process known as endoreduplication

Which combination of statement is correct