★ Genes and DNA Quiz
What is the basic building block of DNA?
A. Nucleotide
B. Cell
C. Protein
D. Chromosome
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What are the four nitrogenous bases found in DNA?
A. Adenine (A), Thymine (T), Guanine (G), Cytosine (C)
B. Adenine (A), Thymine (T), Uracil (U), Cytosine (C)
C. Adenine (A), Uracil (U), Guanine (G), Cytosine (C)
D. Uracil (U), Thymine (T), Guanine (G), Cytosine (C)
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