What mechanism is used by a bacterial cell to fit its DNA into the nucleoid region?
A. tight wrapping around histones to form nucleosomes
B. the formation of loop domains, supercoiling by topoisomerases, and tight wrapping around histones to form nucleosomes
C. the formation of loop domains and supercoiling by topoisomerases
D. the formation of loop domains
E. supercoiling by topoisomerases
Answer: C
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If chromosomal DNA from a host is the only type of DNA carried by a transducing particle, what can be concluded regarding transduction in this case?
A. Transduction in this case could be generalized or specialized depending on the phage involved. B. Transduction in this case is generalized rather than specialized. C. Transduction in this case is neither generalized nor specialized. D. Transduction in this case is specialized rather than generalized.
The PCR method was developed by
A. Mullis. B. Sanger. C. Cohen. D. Boyer.
Body appendages as diverse as crab legs,
beetle legs, sea star arms, butterfly wings, fish fins, and mouse feet start out as a. clusters of cells in the limb buds. b. cerebral cells. c. cardiac cells. d. offshoots of the sperm cell. e. offshoots of the egg
The muscular system is made up of