Biology The Dynamics of Life, Florida Edition

Section 1: DNA: The Molecule of Heredity

DNA: The Molecule of Heredity

1.
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According to the data in the table, which of these statements is true? SC.F.2.4.2, SC.H.1.4.1
A)There is always more T than A in each of the DNA samples.
B)The total amounts of A, T, G, and C in each DNA sample add to about 100%.
C)C is represented in the smallest percentage for each of the DNA samples.
D)C and G together compose at least 50% of each of the DNA samples.
2.
Thymine and cytosine are also called __________.
A)pyrimidines
B)isotopes
C)viruses
D)purines
3.
Which of these sequences correctly describes how DNA is copied? SC.F.2.4.2
A)separation of strands&151;bonding of bases&151;replication&151;base pairing
B)replication&151;bonding of bases&151;separation of strands&151;base pairing
C)replication&151;bonding of bases&151;base pairing&151;separation of strands
D)separation of strands &151;base pairing&151;bonding of bases&151;replication
4.
Which of these correctly matches with the nitrogenous base adenine in DNA?
A)guanine
B)thymine
C)cytosine
D)adenine
5.
Which of these DNA strands would the DNA strand A-T-G-C-C-G-T-T match to? SC.F.2.4.2
A)T-T-G-C-C-G-T-A
B)C-G-T-A-A-T-G-G
C)G-C-A-T-T-A-C-C
D)T-A-C-G-G-C-A-A
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