Plant geneticists have identified and sequenced genes which produce the enzymes required for this production.

The condition stems from the lack of an enzyme required to digest lactose, a sugar found in milk and dairy products.

Baker's yeast yields the enzyme required to make chocolates with liquid centers.

In some cases, we've had to wait years until the enzymes required for the synthesis have been identified and cloned into bacteria.

In all these viruses, the enzymes required for endogenous transcription are thus part of the virion structure.

They make cholesterol levels plummet by blocking an enzyme required in its synthesis.

Cells prepare for cell division by making some of the enzymes required during the division.

Pyrethroids are considered safe to vertebrates, which have sufficient enzymes required for rapid breakdown.

We lack the enzymes required to digest food grown anywhere but the soil of this planet.

It inhibits aldehyde dehydrogenase, an enzyme required for breaking down alcohol.