24. One amino acid directly involved in the purine biosynthetic pathway is (A) alanine (B) aspartate (C) glutamate (D) leucine (E) tryptophan

26. Protein amino acid side chains can hydrogen bond in the major groove of DNA, and discriminate between each of the four possible base pairs. In which one of the following groups of amino acids can all three members potentially be used in such DNA-protein recognition? (A) Ala, Asn, Glu (B) Arg, Gln, Leu (C) Asn, Gln, Trp (D) Asn, Glu, Lys (E) Glu, Lys, Pro

24. One amino acid directly involved in the purine biosynthetic pathway is
(A) alanine
(B) aspartate
(C) glutamate
(D) leucine
(E) tryptophan

相關試題

相關試卷

24. One amino acid directly involved in the purine biosynthetic pathway is(A) alanine(B) aspartate(C) glutamate(D) leucine(E) tryptophan

相關試題

相關試卷

24. One amino acid directly involved in the purine biosynthetic pathway is
(A) alanine
(B) aspartate
(C) glutamate
(D) leucine
(E) tryptophan