__________ are nonessential genetic element that can exist in two ways in the bacterial cell: either integrated into the bacterial chromosome or in the plasmids.

A. Transposons
B. F plasmids
C. Conjugative plasmids
D. Jumping-jack genes


Ans: A. Transposons

Biology & Microbiology

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The female fetal pig is similar to the male fetal pig in that its body

(a) has separate openings for the urinary system and the reproductive system. (b) has a common opening for the urinary system and the reproductive system. (c) has an opening for the urinary system but none for the reproductive system. (d) has an opening for the reproductive system but none for the excretory system.

Biology & Microbiology

Some pathways for replication fork repair lead to the creation of Holliday intermediates behind the reconstituted forks that when resolved by RuvC produce dimeric chromosomes. What enzyme complex can resolve these dimeric chromosomes?

A. RecBCD B. XerCD C. RecFOR D. RecA E. resolvase

Biology & Microbiology

The mature male gametophyte is indicated by the letter ____

a. A b. B c. C d. D e. E

Biology & Microbiology

Long structures used for cell movement are 

A. centrioles. B. cilia. C. flagella. D. granules.

Biology & Microbiology