Bacterial plasmids
A. are essential for chromosome replication and binary fission.
B. are artificially created by humans and are present in bacteria only because humans put them there.
C. can provide genes that allow the bacteria to grow and thrive in the presence of potential toxins.
D. are essential for growth.
E. are essential for cellular respiration.
Answer: C
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In lysogenic conversion, bacteria acquire new genetic information in the form of:
A) bacterial genes. B) naked DNA. C) R-factors. D) viral genes.
DNA and RNA are alike in
a. the pentose sugar. b. all the nitrogenous bases used to assemble the genetic code. c. the number of strands. d. their function in genetics. e. none of these.
Which stage(s) show(s) the diploid portion of
the life cycle? a. A b. B c. C d. D e. D and E
When an embryo partially splits after day 12 of development what arises?
a. fraternal twins b. triplets c. a fetus with extra limbs d. conjoined twins e. fetus in fetu