Results 131 to 140 of about 90,461 (311)

Fine-Structure Map of the Histidine Transport Genes in \u3cem\u3eSalmonella typhimurium\u3c/em\u3e [PDF]

open access: yes, 1977
Afine-structure genetic map of the histidine transport region of the Salmonella typhimurium chromosome was constructed. Twenty-five deletion mutants were isolated and used for dividing the hisJ and hisP genes into 8 and 13 regions respectively.
Afong, J.   +6 more
core   +1 more source

Genetic toxicity studies of organic chemicals found as contaminants in spacecraft cabin atmospheres [PDF]

open access: yes
Astronauts can be exposed during spaceflight to organic chemical contaminants in the spacecraft cabin atmosphere. Toxic exposures may cause lesions in the cellular DNA which are subsequently expressed as sister-chromatid exchanges (SCE).
Torres, Joseph, Jr.
core   +1 more source

The safety of herbal medicinal products [PDF]

open access: yes, 2011
The primary aim of the EU, with the registration of herbal medicinal products (HMPs), is the protection of the European citizens from fraudulent and unsafe products.
Attard, Everaldo
core  

Mutagen Synergy: Hypermutability Generated by Specific Pairs of Base Analogs

open access: yesJournal of Bacteriology, 2016
Jocelyn Ang   +6 more
semanticscholar   +1 more source

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