Answer:
the genotype of the bacteria in this E.coli colony is arg^+leu^-met^+
Explanation:
The organism which, due to the lack of particular genes, can not synthesize a particular metabolite or nutrient by itself and needs the nutrient to the growing supplement is called auxotroph. The colony E.coli began to grow on a limited medium with arginine and leucine, and not with arginine and methionine in the above mentioned case. Leucine is therefore a vital metabolite required to grow bacteria and bacteria that do not contain the leu gene.
Therefore. the genotype of the bacteria in this E.coli colony is arg^+leu^-met^+
Answer:
They help transport materials that an organism needs to survive and they recycle waste materials.
Explanation:
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The answer is A
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People in everyday language use theory as a guess and estimation
Scientists use scientific method and do all sorts of experiments to prove their theory
B )( meiosis; occurs before sexual reproduction and will be result in offspring with different genetic information from the parent ) is the right answer
