Refer to the following paragraph and Figure 3.1 to answer the following questions.
![Refer to the following paragraph and Figure 3.1 to answer the following questions. Figure 3.1 Since structure correlates so well with function,biochemists are constantly looking for new ways to probe the complex structure of proteins in order to understand what they do and how they do it.One of the most powerful techniques in existence today is X-ray crystallography.The main difficulty with this technique is getting the protein to crystallize.Once crystallized,the protein is bombarded with X-rays to create a pattern that can be analyzed mathematically to determine the three-dimensional structure of the protein.This analysis has been performed by Krzysztof Palczewski on the protein rhodopsin,which is a light-sensitive protein found in species ranging from ancient bacteria (archaea) to humans.The structure (schematically shown above,where each letter represents an amino acid) is characterized by a single polypeptide chain with several α-helical segments that loop back and forth across the cell membrane.Another notable feature is the disulfide bond (-S-S-) that can be seen at the bottom of the third transmembrane segment.[Figure adapted from K.Palczewski et al. ,Science 289 (2000) : 739.] -If you were reading off the sequence of amino acids in Figure 3.1 to a biologist friend,what should the first three letters be? A) M-N-G B) A-P-A C) It doesn't matter,since the protein has no polarity or directionality.](https://d2lvgg3v3hfg70.cloudfront.net/TB3734/11ea48b8_22eb_9c66_b057_b92d39768e23_TB3734_00_TB3734_00_TB3734_00_TB3734_00_TB3734_00_TB3734_00.jpg)
Figure 3.1
Since structure correlates so well with function,biochemists are constantly looking for new ways to probe the complex structure of proteins in order to understand what they do and how they do it.One of the most powerful techniques in existence today is X-ray crystallography.The main difficulty with this technique is getting the protein to crystallize.Once crystallized,the protein is bombarded with X-rays to create a pattern that can be analyzed mathematically to determine the three-dimensional structure of the protein.This analysis has been performed by Krzysztof Palczewski on the protein rhodopsin,which is a light-sensitive protein found in species ranging from ancient bacteria (archaea) to humans.The structure (schematically shown above,where each letter represents an amino acid) is characterized by a single polypeptide chain with several α-helical segments that loop back and forth across the cell membrane.Another notable feature is the disulfide bond (-S-S-) that can be seen at the bottom of the third transmembrane segment.[Figure adapted from K.Palczewski et al. ,Science 289 (2000) : 739.]
-If you were reading off the sequence of amino acids in Figure 3.1 to a biologist friend,what should the first three letters be?
Definitions:
Perfect Rationality
A decision strategy that is completely informed, perfectly logical, and oriented toward economic gain.
Nobel Prize
A set of annual international awards bestowed in several categories by Swedish and Norwegian institutions in recognition of academic, cultural, or scientific advances.
Herbert Simon
An American economist and cognitive psychologist known for his research in the fields of decision-making and artificial intelligence; he is credited with the concept of bounded rationality.
Perfectly Rational
The theoretical concept of making decisions based on complete information and logical, objective analysis.
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