A(n) ____ is a polymer.
A. monosaccharide
B. amino acid
C. nucleotide
D. polypeptide
C. nucleotide
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Using the drawing of mRNA below, choose the letter that best fits the description. Translation is often regulated by sequences in this region. ____
What will be an ideal response?
A gene has been discovered in a eukaryote that is identical to a gene of a bacterium that the eukaryote normally engulfs and digests. This is probably due to
A. vertical evolution. B. horizontal evolution. C. horizontal gene transfer. D. convergent evolution.
An enhancer is a sequence that increases transcription of a gene ____
a. when its orientation is the same as that of the gene it controls b. when it is located just downstream of the promoter c. when it is located just upstream of the promoter d. when it is distant from the gene it controls e. independently of its position, orientation, and distance from a promoter
The nucleotide sequence encoded in a gene defines the ____ that make up proteins
a. phosphate groups b. polypeptides c. ribosomes d. haplotypes
e. amino acids