Chemistry 102 Quiz 10A April 17, 2000 Dr. B. Jackson

101- 106 Use the following answers

a) present in RNA only b) present in DNA only c) present in both RNA & DNA

101. Cytosine is _________.

102. Thymine is _________.

103. Adenine is _________.

104. Ribose is _________.

105. Uracil is _________.

106. Phosphate is ______.

107 - 110 Identify the following compounds as a a) purine b) pyrimidine

107. Guanine

108. Thymine

109. Uracil

110. Adenine

111. If DNA were depicted as a ladder, the rungs of the ladder would be

a) the sugars and phosphates b) the purines and pyrimidines

112. Which base pairs with guanine?

a) adenine b) uracil c) cytosine d) thymine

113. If the DNA had a sequence of ATC, what would the corresponding sequence on the mRNA be? a) TAG b) UAG c) AUG d) UAT

114. If the mRNA had the codon CAG, what would be the anticodon on the tRNA?

a) CAG b) GAC c) GTC d) GUC

115. Using the table below, which of the following is NOT a code for alanine (ala)?

a) GAC b) GCA c) GCC (chart was cut & paste and not on computer)

Ans: 101c;102b;103c;104a;105a;106c;107a;108b;109b;110a;111b;112c;113b;114d;

Wednesday, March 21, 2007 01:28:00 PM