Quiz: DNA Structure 2:DNA, RNA, and Biotechnology 10.
Which nitrogenous base always pairs with guanine?
O adenine
O uracil
Othymine
O cytosine

An example of what is geese flying south for the

Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.

Explain why biological control methods are generally environmentally superior to chemical pest control methods.