Which pairing is incorrect?
A. A:T
B. G:C
C. A:U
D. A:G
D
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A nucleotide consists of
A) three sugars for every phosphate. B) three phosphates for every sugar. C) one deoxyribose sugar, one nitrogenous base, and one phosphate group. D) three DNA bases.
Bone resorption
What will be an ideal response?
In gene expression, ________
A) DNA directs the synthesis of a polypeptide that directs the synthesis of RNA B) RNA determines the sequence of DNA, which directs the synthesis of polypeptides C) DNA directs the synthesis of RNA that directs the synthesis of a polypeptide D) polypeptides direct the synthesis for both RNA and DNA
Over 1 million of these microscopic units produce urine in the kidneys.
A. glomerulus B. alveoli C. glomerular (Bowman's) capsule D. microvilli E. nephron