Sentence examples for dna biologists from inspiring English sources

In intense efforts to explore beyond the door opened by the discovery of DNA, biologists from Paris to Pasadena, were drawn into a pursuit that at every stage was shaped by Francis Crick.

Previously, based on studies of bacterial DNA, biologists believed that genes consisted of unbroken stretches of DNA, all of which encoded protein structure.

From patterns in the DNA data, biologists can often estimate the sizes of ancient populations and even the approximate dates when one group of people split from another.

Furthermore, the genes constituted only 3percentt of the cell's DNA, leaving biologists to wonder about what function, if any, the remaining 97percentt had.

With DNA, evolutionary biologists can corroborate or refute relationships inferred from morphology and generate new insights about the tree of life while enabling us to test hypotheses about the evolution of form and function.

After Watson and Crick discovered the double helical structure of DNA, molecular biologists turned their attention to how that macromolecule could be replicated (see Section 1.2 above).

So familiar is the double-stranded structure of DNA that biologists often refer to the molecule simply as the double helix.

"I can remember in my second year thinking [that] in the... 50 years since Watson and Crick elucidated the structure of DNA, molecular biologists had been taking living systems apart and understanding the various pieces.

Before searching for a molecule capable of bracing an aberrant p53 in the correct position to attach to DNA, cancer biologists Farzan Rastinejad and Barbara Foster of Pfizer Central Research in Groton, Connecticut, needed a quick way to tell whether a compound was working.

In the early days of molecular biology, when others were working on DNA, the biologist Seymour Benzer decided to dissect behavior by studying the fruitfly.

"The problem was that there was a lot of diversity in the mitochondrial DNA," says biologist Vera Warmuth of the University of Cambridge in the United Kingdom, the first author of the new study.