Gustation is our sense of
A. taste.
B. smell.
C. limb position.
D. light touch.
E. pain.
A. taste.
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The episome in an Hfr strain is inserted near the trp (tryptophan operon) locus. This Hfr strain is grown with an F- Trp- strain. From this mating, we isolate an F+ Trp+ strain that can readily impart the Trp+ phenotype to F- Trp- strains, but no other traits are ever transferred. (When the original Hfr strain is mated with F? strains, traits other than Trp+ can be transferred, although at lower frequency than Trp+.) What most likely has happened?
A) An F? trp+ plasmid has been generated. B) Mutation occurred. C) Transduction occurred. D) Transformation occurred.
When considering the structure of DNA, we would say that complementary strands are antiparallel
Indicate whether the statement is true or false
A replicon
a. may or may not have an origin. b. must include the gene for the protein that regulates initiation of replication. c. must "fire" only once during the cell cycle. d. must have a terminus. e. is trans-acting.
In developing embryos such as a chicken, what restores the amount of surface area needed for exchange requirements?
A. catabolism B. respiration C. anabolism D. cell division E. assimilation