Glutamine is an
so is phenylalanine.

Which type of stimulus do mechanoreceptors detect? sound pain heat light

There are only about 250,000 known fossil species. true or false

The structure of a dna molecule is best described as a. one long strand of nucleic acids b. two strands of dna nucleotides joined by hydrogen bonds c. two strands of amino acids joined by hydrogen bonds d. one long strand of amino acids