Streptomycin At Biology Glossary

What is it? An antibiotic that inhibits protein synthesis in bacteria by binding to the S12 protein of the 30s ribosomal subunit and inhibiting translation. A high level of StrR can result from chromosomal mutations in the gene for the S12 protein (rpsL) which preven

Bio Definition Added By: Faith

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Other Similar Biology Terms:

Bio Term Prototroph is A microorganism that is able to grow on minimal medium containing only a carbon source and inorganic salts.

Bio Term vestigial organ is any organ over the course of evolution had become reduced in function and usually in size.

Bio Term autosomal set is The non-sex chromosomes consisting of one from each homologous pair in a diploid species.

Bio Term Enrichment is A condition which increases the proportion of a particular organism or mutant strain from a mixed population. For example, a penicillin enrichment kills growing cells and allows mutants unable to grow under a particular condition to survive; however, for each round of penicillin enrichment typically only 1% of the growing cells are killed, thus each round of enrichment increases the mutant ratio about 100-fold. Compare with selection.

Bio Term heterotroph is An organism dependent on obtaining organic food from the environment because it is unable to synthesize organic material. They (animals, fungi, many bacteria, and a few flowering plants) obtain almost all their organic material either directly or indirectly from the activity of autotrophs.