Some enzymes are controlled by having nonsubstrates bind to a nonactive site and result in a change in
their overall structure; these are called __________. Fill in the blank(s) with the appropriate word(s).
ANS: allosteric PTS: 1 DIF: Moderate
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If you were to design a novel hydrophobic protein, which type of monomers would be most essential to incorporate in the molecule in order to achieve the desired result?
A. Amino acids with nonpolar side chains B. Purine-containing deoxyribonucleotides C. Amino acids with charged side chains D. Hydrophobic nucleic acids E. Polar amino acids
In this depiction of transcription, the ____
strand is ____ because it ____. a. upper; RNA; is single-stranded. b. lower; RNA; contains uracil. c. lower; RNA; contains thymine. d. upper; RNA; has no uracil (U). e. lower; DNA; contains adenine (A).
A cell undergoing meiosis that contains sister chromatids may be either haploid or diploid.
Answer the following statement true (T) or false (F)
When examining the complete genome sequence of E. coli 0157:H7, a researcher notes that only one of two possible codons coding for lysine is observed in the genome. This is likely the result of:
a. mutational bias. b. this gene being highly expressed. c. unequal abundances of transfer RNA. d. selection against slip-stand mutations. e. All of the above.