In 1950, biochemist Erwin Chargaff found that the arrangement of nitrogen bases in DNA varied widely ... learned of Chargaff's findings about base pairs in the summer of 1952.

After the primer is in place on a single, unwound polynucleotide strand, DNA polymerase wraps itself around that strand, and it attaches new nucleotides to the exposed nitrogenous bases.

Japanese scientists detected all five nucleobases — building blocks of DNA and RNA — in samples returned from asteroid Bennu ...

Double-stranded DNA consists of two polynucleotides that are arranged such that the nitrogenous ... This base-to-base bonding is not random; rather, each A in one strand always pairs with a ...

It shows a hexagonal ring with nitrogen atoms at positions 1 and 3 ... forming a stable base pair. The sequence of these base pairs along the DNA strand encodes genetic information. During DNA ...

Among the findings, the Japanese contributors detected all five nitrogenous bases, molecules required for building DNA and RNA, supporting the theory that asteroids could have brought the building ...

Beans are a key food at the dietary level, boasting high nutritional value and constituting the most directly consumed legume ...

This image illustrates the chemical structure of a purine molecule, highlighting the numbering of the carbon and nitrogen atoms ... common purines in DNA and RNA, share this core structure, which is ...

They're still the ones responsible for sorting base pairs ... DNA has two strands — one is made of sugar molecules and the other of phosphate groups. Between these two strands are nitrogen ...