During  a  field  trip,  an  instructor  touched  a  moth  resting  on  a  tree  trunk.  The  moth  raised  its  forewings  to  reveal large eyespots on its hind wings. The instructor asked why the moth lifted its wings. One student answered that sensory  receptors  had  fired  and  triggered  a  neuronal  reflex  culminating  in  the  contraction  of  certain  muscles.  A second student responded that the behaviour might frighten predators. Which statement best describes these explanations?

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#Question id: 119

#1. Molecules and their Interaction Relevant to Biology

Tay-Sachs disease is the result of a genetic defect in the metabolism of:

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#Question id: 291

#1. Molecules and their Interaction Relevant to Biology

Which of the following types of non-covalent bonds or interactions is thought to be primarily responsible for driving the three-dimensional folding of a protein:

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#Question id: 294

#1. Molecules and their Interaction Relevant to Biology

Which of the following pairs of amino acids would you predict to only participate in Van der Waals interactions in the three dimensional folding of a protein:

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#Question id: 295

#1. Molecules and their Interaction Relevant to Biology

Which of the following pairs of amino acids could form a covalent disulfide bond to link two polypeptides together in a multi-subunit protein complex

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#Question id: 296

#1. Molecules and their Interaction Relevant to Biology

In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by ________.

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#Question id: 297

#1. Molecules and their Interaction Relevant to Biology

The boiling point of water is exceptionally high because