This gene governs a significant aspect of their respective behaviors.

The gene governs sociability and feeding behavior in a microscopic roundworm, a favorite laboratory organism chosen for its ease of study and its relative simplicity.

One is that the precision with which scientists can tell which gene governs a particular trait in a plant or animal is overstated.

But scientists emphasize that they were far from being in a position to manipulate the genes governing intelligence, if such genes exist.

Each gene, however, governs one enzyme, and we can analyze for enzymes.

Evolutionary biologists believe, on largely theoretical grounds, that many genes govern aging and that there can be no single mechanism of aging, whether the one Dr. Guarente suggests or any other.

In the genes governing intelligence, both Wanderer and Houseborn Yrythny had equal potential.

In the mid-1980's, he turned his attention to cell biology, studying how genes govern cell division.

The findings suggest that in its healthy form, the Wilm's gene governs the crosstalk between two primordial bits of tissue that jointly give rise to the tubular structures characteristic of the kidneys.

Mr. Benzer and the generations of students he has fostered studied time, love and memory in fruit flies to see how genes govern behavior.