"Avantor"

Two o strains of Escherichia coli; one exhibiting Ampicillin resistance, and one sensitive, but competent and ready to receive the plasmid that confers resistance.

These restriction enzymes are used to recognize specific sequences in double strand DNA. BamH I recognizes 5-G/GATCC-3, Ecor I recognizes 5-G/AATTC-3, and Hind III recognizes 5-A/AGCTT-3. The activity level of all our restriction enzymes is 10 units per 1 µl.
All are shipped next day on ice. As they are perishable, a ship date must be specified.

This organism can be isolated from soil, wounds, and intestinal tracts of humans. It digests protein and is known for its strong, distinctive odor.

Compare and Contrast Drosophila Sexes

Identify indicator protists associated with polluted conditions

Sarcophaga bullata are gray flesh flies. These flies are reared on decaying flesh and pupate quickly, within 5 to 7 days from birth, to illustrate complete metamorphosis in Diptera.

Illustrates Characteristics of Certain Aquatic Plants

Culture Common Gram-Positive and Gram-Negative Bacteria

Certain strains of bacteria have their own pigments, creating a rainbow of different natural colors. This set includes bacterial cultures with a variety of different colors.

One jar containing a mixture of 6 different genera of algae. Each algae is cultured individually in Ward's laboratories, and mixed together immediately prior to shipment to ensure an adequate supply of each organism.

This 3-part lab covers selectively permeable cell membranes, hydrophilic interactions, and cell surface area to volume ratio.

Inexpensive but Important Apparatus

Platinum tipped electrodes with rubber stoppers.

Science Has Never Been Sweeter!

Two sets of popular tuning forks are available.

Excellent Introduction to Natural Environmental Cleanup