Which of the following statements about Hfr cells and bacterial conjugation is false?

A. An F' plasmid contains some bacterial genes.
B. Cells with integrated F' plasmid have two copies of some genes.
C. If excision of the F plasmid from an Hfr cell includes some bacterial genes, a partial diploid can result.
D. The genes that are transferred from an Hfr cell into a recipient cell during conjugation replace the equivalent genes in the recipient cell.
E. An Hfr cell becomes an F- cell if its integrated F plasmid is excised.


Answer: E

Biology & Microbiology

You might also like to view...

Energy stored in food is measured in ________

a. BMI b. grams c. kilocalories d. pounds

Biology & Microbiology

The most common source of DNA mutation is _____; however, these mistakes are typically corrected

a. cigarette smoke b. UV light c. errors in DNA replication

d. errors in protein synthesis e. pesticides on the food we eat

Biology & Microbiology

As few as __________ Escherichia coli O157:H7

cells can cause disease. a. 11 b. 100 c. 10 d. hundreds e. thousands

Biology & Microbiology

The baby is delivered during the third stage of labor. Indicate whether the statement is true or false

Biology & Microbiology