Sentences with phrase «contains bacterial genes»

If a soil sample contains bacterial genes that produce enzymes used to convert carbon dioxide from the atmosphere into solid carbon, and these genes are active, researchers can conclude that microbes within the sample are actively storing carbon.

Bt corn, for example, contains bacterial genes that make the crop toxic to soft - bodied caterpillars and some other insects.

Not exact matches

In addition both constructs contain the constitutive Ubi promoter and nos T terminator, the bar gene conferring herbicide tolerance and may contain further sequences of bacterial origin including the neomycin phosphotransferase (nptI) selectable marker gene.

Suspecting that the other four carried a new Ehrlichia species, the researchers sequenced the bacterial gene in their blood and compared it to a database containing the sequences of known infectious bacteria.

CRISPRs are bacterial immune systems that contain many defense enzymes such as the Cas9 «molecular scissors,» which scientists including Hsu have engineered as a powerful DNA - targeting gene - editing tool.

To gain access to the gene - containing portion of the barley genome at high resolution, Close and his team identified and sequenced 15,622 BACs or bacterial artificial chromosomes — small fragments of the barley DNA linked to other DNA to constitute a circular molecule that can replicate and be propagated inside an E. coli bacterial cell, enabling researchers to produce copies of each BAC for DNA sequencing one small piece of the barley genome at a time.

So in the new study the researchers slipped the «alien» pair of bases into bacterial genes that also contained traditional bases.

By analyzing variation in a specific bacterial gene in his samples — the greater the variability, the higher the variety of species — Fierer found that deserts contained up to twice as many bacterial species, roughly 10,000 per 10 square meters, as did acidic rain forest soils.

Plasmids are rings of bare DNA containing a handful of genes that are essentially freeloaders, borrowing most of what they need to live from their bacterial host.

When scientists at the University of Delhi in India took soil samples from a pesticide dump and compared them with samples from a cleaner control site, they reported that the soil from the waste site contained a higher concentration of gene sequences from certain bacterial groups, such as Pseudomonas, Novosphingobium and Sphingomonas, that are known to degrade common pesticides like hexachlorocyclohexane.

The GENSAT collection contains transgenic strains of mice in which each transgene is derived from bacterial artificial chromosomes (BACs) and expresses a reporter gene in the same environment as the native gene.

Functional analysis showed significant differences between the metagenomes and the downstream bacterial communities contained a high abundance of genes associated with antibiotic resistance (COG0294, 3570, 3231, 1357), replication and mobilization of DNA (COG3668, TIGR01629, TIGR02768) and membrane transporters (COG0488, TIGR02294)(Tables S6, S7, S8, S9, S10, S11).