I believe the answer is C
Answer/Explanation:
An important way of selecting for bacteria carrying specific recombinant DNA is to add a resistance gene (such as antibiotic resistance) to your gene of interest. That means that any bacteria that carry your DNA will be resistant to a specific antibiotic (in this case streptomycin). Therefore, you can grow your bacteria on plates with streptomycin, and in theory, the bacteria will be unable to grow if they don't have the resistance gene and your gene of interest.
Here, strain A does not grow on streptomycin plates, but strain B now has 100 colonies. This suggests strain B can grow on streptomycin, meaning it is resistant.
Strain B is therefore the streptomycin resistant master plate strain.
<h2>Answer with Explanation </h2>
I have been as of late pondering, on the off chance that I take a sufficiently incredible vitality source (photon) and I have an ideal mirror precisely before it and expect a "producer" shot the light towards the mirror. As impeccable mirrors assimilate no vitality of ANY sort from photons, should this imply the ideal mirrors could never move because of exchange of force of the light? it depends on the mass of the mirror, obviously. Your ideal mirror would have a vast mass, in which case it could assimilate the force change, without engrossing any vitality. A reflection of limited mass will ingest some vitality in a crash that will change the vitality and along these lines the wavelength of the photon. There is no logical inconsistency here.
Answer: the correct option is : highly developed cell- cell communication.
Explanation: In complex multicellular organisms, cell - cell communication also known as cell signalling is part of any communication process that leads basic activities of cells and coordinates multiple cell functions.
