Use the Following Information and Graph to Answer the Question

Use the following information and graph to answer the question.
The figure below 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 (in other words, a fragment of the recipient's chromosome is exchanged for a homologous fragment from the Hfr cell's DNA) .

During which two times can the recipient accurately be described as "recombinant" due to the sequence of events portrayed in the figure?

A) during times C and D
B) during times A and C
C) during times A and B
D) during times B and D

Correct Answer:

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