Figure 272 Depicts Changes to the Amount of DNA Present in in a Recipient

Multiple Choice

Figure 27.2 depicts changes to the amount of DNA present in a recipient cell that is engaged in conjugation with an Hfr cell. Hfr-cell DNA begins entering the recipient cell at Time A. Assume that reciprocal crossing-over occurs (i.e., a fragment of the recipient's chromosome is exchanged for a homologous fragment from the Hfr cell's DNA) . Use Figure 27.2 to answer the following questions.

Figure 27.2
-How is the recipient cell different at Time D than it was at Time A?

A) It has a greater number of genes.
B) It has a greater mass of DNA.
C) It has a different sequence of base pairs.
D) It contains bacteriophage DNA.
E) It has a greater number of introns.