An X-linked recessive gene produces red-green color blindness in humans. A woman with normal color vision whose father was color-blind marries a color-blind man. What is the probability that their son will be color-blind?

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#Question id: 179

#Unit 1. Molecules and their Interaction Relevant to Biology

The average molecular weight of the 20 standard amino acids is 138, but biochemists use 110 when estimating the number of amino acids in a protein of known molecular weight.  Why?

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#Question id: 180

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statements about aromatic amino acids is correct?

TLS Online TPP Program

#Question id: 181

#Unit 1. Molecules and their Interaction Relevant to Biology

Titration of valine by a strong base, for example NaOH, reveals two pK’s. The titration reaction occurring at pK2 (pK2 = 9.62) is:

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#Question id: 182

#Unit 1. Molecules and their Interaction Relevant to Biology

Which amino acid is least likely to participate in acid-base catalysis?

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#Question id: 183

#Unit 1. Molecules and their Interaction Relevant to Biology

At pH 7.0, converting a glutamic acid to gamma-carboxyglutamate, will have what effect on the overall charge of the protein containing it?

TLS Online TPP Program

#Question id: 184

#Unit 1. Molecules and their Interaction Relevant to Biology

What is the approximate charge difference between glutamic acid and alpha-ketoglutarate at pH 9.5?