What type of a trait results in the large variation in shoe size among humans?
A) dizygotic
B) qualitative
C) quantitative
D) polygenic
C
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Which of the following is not an essential component of the bacterial elongation stage of translation?
A. functional 70S ribosome B. EF-Ts C. aminoacyl-tRNAs D. ATP
A strain of E. coli is trp? his? lac?. Which medium would this bacterium grow on?
A) minimal medium with lactose as the sugar, supplemented with histidine and tryptophan B) minimal medium with glucose as the sugar, supplemented with histidine and tryptophan C) minimal medium with glucose and lactose as the sugar D) minimal medium with glucose as the sugar
Could your lifestyle or the food you eat influence evolution? How?
What will be an ideal response?
Which of the following is the largest group of hormones?
a. steroid hormones
b. polysaccharide hormones c. amino acid derivatives d. peptide hormones e. fatty acid derivatives