Which of the Following is True About a Merozygote

Question

Which of the following is true about a merozygote? A)It can spontaneously form from an Hfr cell. B)Merozygotes were crucial to our understanding of the formation of the sex pilus. C)A merozygote can form if an F factor carries chromosomal DNA and is injected into an F^-cell. D)A conjugation with an Hfr donor will never produce a merozygote. E)It is formed from an Hfr to F⁺cross.

Accepted Answer

A merozygote can form if an F factor carries chromosomal DNA and is injected into a recipient cell. The recipient cell can then temporarily become diploid for the specific region of chromosomal DNA. The other choices are incorrect because: A) A merozygote cannot spontaneously form from an Hfr cell. B) Merozygotes may have played a role in understanding the sex pilus, but this does not make the statement true. D) Conjugation with an Hfr donor cell can produce a merozygote, depending on the circumstances. E) This answer choice is unclear and does not provide sufficient information to determine its accuracy.