BLONZ: Are arginine and L-arginine the same thing? What does the "L" stand for? Thank you.-- V.E., Dover, Delaware.

Researchers utilized recently published telomere-to-telomere genomes of humans, chimpanzees, bonobos, gorillas, and two ...

WE wish to suggest a structure for the salt of deoxyribose nucleic acid (D.N.A.). This structure has novel features which are of considerable biological interest. A structure for nucleic acid has ...