Khorana used synthetic mRNAs to determine genetic code possibilities. To do so, he translated synthetic mRNA in vitro in the presence of individual 14C-labeled amino acids. What polypeptide did he identify using the repeating dinucleotide poly-UG?
What will be an ideal response?
Cys-Val-Cys-Val
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The two amino acids depicted above both have side groups (R groups) that are
a. acidic and polar. b. uncharged and nonpolar. c. basic and polar. d. positively and negatively charged and nonpolar. e. uncharged and polar.
This characteristic of a molecule determines the ability of hydrogen bonds to form between it andhydrogen:a
A nonpolar atom. b. An atom with a partial positive charge. c. An atom with a partial negative charge. d. A hydrophobic molecule. e. An atom with a filled valence she
How many human chromosomes could fit into a single bacterial cell?
a. 0 b. 1 c. 23 d. 46 e. 92
How do slime layers assist bacterial cells?
A) By resisting phagocytosis from host cells B) By facilitating motility C) By protecting against osmotic stress D) All of the above