The next step was to find out its structure, in order to understand how the gene, the basic unit of heredity, works and how it is passed from one generation to the next. Crick and Watson were ...

The different colored bases (adenine, thymine, guanine, and cytosine) represent the genetic code that instructs cells how to make proteins. Understanding this structure is essential for studying ...

In fact, each gene in cellular DNA contains the code for a unique protein structure. Not only are these proteins assembled with different amino acid sequences, but they also are held together by ...

Prokaryotic organisms contain one type of rRNA gene that encodes three ... these RNAs all share the same basic single-stranded chemical structure with, in some cases, higher-order structures ...

The DNA within the chromosomes encodes genes, which are the basic units of heredity ... Chromosomes also play a role in regulating gene expression. The structure and packaging of chromatin can ...

who can't comprehend how we could share so much of our basic genetic endowment even with the most humanlike ape. Yet this genetic similarity is very real, and it dramatically shows how ...