Biology, 07.10.2019 17:20 ayoismeisalex
The lac operon contains three genes: lacz, lacy, and laca for β‑galactosidase, galactoside permease, and thiogalactoside transacetylase, respectively. the operon also contains a promoter site and an operator site. the regulatory gene includes the i gene for the lac repressor protein and a promoter for that gene. the lac operon undergoes negative regulation. in the normal condition, the lac repressor protein is active. allolactose, an isomer of lactose, is the signal molecule that binds to the lac repressor. determine which events will increase the concentration of lac gene products and which will decrease the concentration of lac gene products.
Answers: 3
Biology, 22.06.2019 00:40, Loganstilson9847
Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation
Answers: 1
Biology, 22.06.2019 03:30, mickeyo2003
In 1992, hurricane andrew left a wake of destruction through florida. one victim of the storm was a reptile-breeding facility. over 900 burmese pythons were set free, and today thousands of pythons live in florida. these pythons are an invasive species, or a harmful species not native to the region. 1. what impacts do you think the burmese pythons might have on local ecosystems
Answers: 2
Biology, 22.06.2019 05:00, shainaanderson24
Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior
Answers: 1
The lac operon contains three genes: lacz, lacy, and laca for β‑galactosidase, galactoside permease...
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