Proteins 1

The one letter code for Tryptophan is ______.

• T

• R

• W

• Y

The one letter code for Phenylalanine is ______.

• P

• A

• H

• F

The amino acid with the one letter code "T" is ____

• Tyrosine

• Threonine

• Tryptophan

• Thiamine

True or false - Only the D-form of amino acids is found in naturally occurring proteins.

• True

• False

Which of these amino acids are found in naturally occurring proteins?

• L-Glycine

• L-Arginine

• D-Arginine

• Both L-Glycine and L-Arginine

Which of these amino acids absorbs the maximum amount of UV light?

• Tyrosine

• Threonine

• Tryptophan

• Phenylalanine

Which of these are unconventional amino acids?

• Ornithine

• Serine

• Arginine

• Uracil

_____ is an essential amino acid.

• Threonine

• Tyrosine

• Aspartic acid

• Serine

What is the isoelectric point of proline if pKa1 = 2 and pKa2 = 11

• 13

• 5.5

• 6

• 6.5

Proline is loaded midway in a gel of pH 2.0 (shown in figure). What would be its position when a current is applied?

• It would remain in the same spot

• It would move towards the negative electrode.

• It would move towards the positive electrode.

• It would explode