Select any answers that are correct

a. two species have a common ancestor. they both share the ancestral gene a. in species 1 the gene is a1, in species 2 the gene is a2. gene a1 produces a slightly
"better" product that gene a2 due to a minor change from the ancestral version. since we now have two species with genes that are different due to speciation, we would call gene a1 and a2 orthologs.
b. in transformation, naked dna is taken into a cell from its environment
c. in transduction, dna is transferred between cells by a virus (phage)
d. in conjugation, direct contact and exchange of dna occur.
e. gene a duplicates in a species to form a1 and a2. a1 and a2 are paralogs