Which process make meiotic cells genetically different and occurs during prophase i, but not during prophase ii?

Did you know that a blue wales tongue weighs more than an elephant?

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.

Which of these is not a nucleotide base found in dna?