What term is used to describe bacterial cells that can naturally take up DNA from their environment?
A) Auxotrophs
B) Hfr cells
C) Electroporated cells
D) Competent cells

At which point does a recipient cell become an F+ cell?
A) Fusion of the cell membranes
B) Attachment of the sex pilus
C) Transfer of the single-stranded F factor
D) Pulling of donor and recipient cells together
E) Formation of the complementary strand of the F factor

What is the key difference between donor cells and recipient cells?
A) Cell membranes
B) Size
C) A chromosome
D) An F plasmid

What is required by an F- cell to become an F+ cell?
A) An F- cell to be a recipient
B) F plasmid
C) Conjugation pilus
D) F+ chromosome

Ribosomes contain which of the following?
A) tRNA
B) rRNA
C) mRNA, tRNA, and rRNA are all found as part of the ribosome.
D) mRNA

What cellular macromolecule is the fertility factor comprised of?
A) Nucleic acid
B) Lipid
C) Carbohydrate
D) Protein

Which statement about DNA replication is CORRECT?
A) DNA ligase helps assemble the leading strand.
B) The lagging strand is one of the strands of parental DNA.
C) The leading strand is put continuously, and the lagging strand is built in pieces.
D) The leading strand is one of the strands of parental DNA.
E) The lagging strand is built continuously.

A recombinant cell…
A) is the result of a cell dividing.
B) is a cell that receives DNA from an outside source and incorporates it into its own.
C) donates DNA into a new cell.

Based on the animation, what is transferred during bacterial conjugation?
A) RNA
B) A conjugation pilus
C) A bacterial chromosome
D) A bacterial plasmid

What most likely explains the recovery of live S strain cells from a mouse injected with heat-killed S strain mixed with live R strain cells?
A) The S strain fused with the R strain, making it resistant.
B) The R strain picked up the S strain DNA, enabling it to produce a capsule.
C) The S strain was revived by the presence of the host’s immune system.
D) The R strain cells picked up the capsules from the S strain cells.