Beneficial bacteria that synthesize vitamin K and some of the B vitamins are an important part of our digestion. The part of the digestive system where these bacteria are found is the ________
Fill in the blank(s) with correct word
colon
Biology & Microbiology
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Some tRNAs have the ability to pair with different codons due to imprecise base pairing with the third base in the codon. How is this ability described?
a. by degeneracy b. by exon shuffling c. by the wobble hypothesis d. by alternative splicing
Biology & Microbiology
Which of the following must bring in a virion-associated RNA-dependent RNA polymerase when it infects host cells?
A. +dsRNA viruses B. ?ssRNA viruses C. +ssRNA viruses D. All of the choices are correct.
Biology & Microbiology
Which of the following binds to codons?
A) DNA B) Transfer RNA C) Messenger RNA D) RNA polymerase
Biology & Microbiology
Which of the following types of cells does HIV preferentially infect?
A) cytotoxic T cells B) natural killer cells C) helper T cells D) memory cells
Biology & Microbiology