<span>A retrovirus is anything of a group of RNA viruses that insert a DNA copy of their genome into the host cell to replicate.
your welcome
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<span>one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.</span>
Answer:
45 mg of caffeine in one cup of instant coffee.
There is a basic difference, because mass is the actual amount of material contained in a body and is measured in kg, gm, etc. Whereas weight is the force exerted by the gravity on that object mg.
I think it’s A. hope this helps
