A non-direct application of the study of microbes is vaccination. True or false need help.

True

Explanation:

VACCINATION:This is *a treatment which helps the body fight against infection/microbe*. It is carried out by oral taking(taking through the mouth) or injecting a vaccine into the blood stream .*Vaccine is a biological preparation that provides immunity to a particular infectious disease*.

Before a vaccine is given, a proper study of microbes is being carried out, in order to know the right vaccine that will be suitable to fight against a particular infection caused by microbes.

*Without the study of microbes, vaccination will not be effective,i. e, one will not know the type of vaccine to give out and the type of infection /microbe that he/she is fighting against,therefore, wrong vaccines may be given to people* .

It therefore means that *vaccination is a non-direct application of the study of microbes*.

the answer to your question is b

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.