BIOLOGY
JAMB 2003 - Question 38
Biology 2003 JAMB Past Questions - Question 38: If a DNA strand has a base sequence TCA, its complementary strand must be
Choose the most appropriate option for the gap .
A:
B:
C:
D:
Correct Answer
D
Explanation
DEach DNA molecule is made byrepeating small chemical units called nucleotides. Each nucleotide has amongother molecules a nitrogenous or organic base.The nitrogenous base of one• nucleotidepairs up with a complimentary nitrigenous base of a nucleotide on the otherhalf strand ofa DNA and linked up by hydrogen bond. Thus adenine (A) pairs with thymine (T) whileguanine (GJ pairs with Cytosine (C).
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