Which organisms have plasmids, and why are plasmids absent in eukaryotes?
Which organisms have plasmids, and why are plasmids absent in eukaryotes?

Which organisms have plasmids, and why are plasmids absent in eukaryotes?
What type of chromosome do prokaryotes have, and what is its structure?
How has gene sequencing technology impacted scientific research developments?
How can a database be used to identify differences in the base sequence of a gene between two species?
How does the number of genes in humans compare with that in other species?
What causes sickle cell anemia, and how does a base substitution mutation affect mRNA and the polypeptide sequence in hemoglobin?
What was achieved by sequencing the entire base sequence of human genes in the Human Genome Project?
What is a genome, and what does it represent in an organism?
How are new alleles formed by mutation?
How do alleles differ from each other at the molecular level?
To continue with the best experience: