the DNA that makes up the cell's chromosomes can be tightly compacted into a structure that is visible under a microscope, or it can be more loosely distributed and resemble a pile of string.

Later, in 1960, the discovery that an RNA molecule and a DNA molecule ... But as far as their structure is concerned, these RNAs all share the same basic single-stranded chemical structure with ...

But James Watson and Francis Crick's claim was a valid one, for they had in fact discovered the structure of DNA, the chemical that encodes instructions for building and replicating almost all ...

Chances are you've seen an illustration of DNA's double-helix structure and even pictures ... of these cells contains the human genome -- a string of three billion A's, C's, G's, and T's.

Deoxyribonucleic acid (DNA) is the information-carrying molecule found in all living organisms. In most animal, plant and fungal cells DNA is stored in the nucleus coiled up in thread-like ...

In the double helix structure of DNA, thymine forms a base pair with adenine through ... with adenine and its presence in the genetic code highlight its significance in molecular biology.