AP Biology (Mader), 11th Edition

Chapter 12: Molecular Biology of the Gene

Pre-Test

1
Eukaryotic chromosomes are made of:
A)proteins and DNA.
B)enzymes and substrates.
C)polysaccharides and lipids.
D)phospholipids and cholesterol.
2
DNA is composed of a double strand of nucleotides. Because the sugar-phosphate backbone of one strand is 'upside down' relative to the backbone of the other strand, these strands are referred to as:
A)semi-conservative.
B)Okazaki strands.
C)nucleosomes.
D)anti-parallel.
3
DNA contains _____ type(s) of nucleotide(s).
A)one
B)two
C)three
D)four
4
Nucleic acids can be distinguished from proteins by _____.
A)the presence of phosphorous in nucleic acids
B)the presence of sulfur in nucleic acids
C)the presence of carbon in nucleic acids
5
Codon on mRNA and corresponding amino acid
UUAleucineUAAnonsense
GCAalanineAAUsparagine
AAGysineUGCcysteine
GUUvalineUCG, UCUserine

Use the Table to answer the following question. If the sequence of amino acids encoded by a strand of DNA is serine-alanine-lysine-leucine, then what is the order of bases in the strand of DNA?
A)UGUGCAAAGUUA
B)AGACGTTTCAAT
C)AGAGCTTTGAAT
D)UCUGCATTCTTA
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