The scientific study of the structure and function of genes at the molecular level.
22
votes
3answers
2k views
Why do eukaryotic organisms have introns in their DNA?
We touched on introns and exons in my bio class, but unfortunately we didn't really talk about why Eukaryotes have introns. It would seem they would have to have some purpose since prokaryotes do not ...
5
votes
1answer
120 views
Is ovum + ovum fertilization possible for human?
In humans is it possible to fertilize a ovum with another ovum from the same female subject?
I already found some works in which the ovum is fertilized by a somatic cell (see e.g. this ), but I am ...
5
votes
1answer
541 views
What is the distinction between F' plasmid and R plasmid?
Is there a difference between an F' plasmid that has taken up a chromosomal gene that conveys antibiotic resistance, and an R plasmid? Is a bacterium containing an R plasmid and yet lacking an F+ ...
