AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If one DNA strand has a code GATTA then its complementary strand will have the code:
A
ATAAT
B
CTAGT
C
CTAAT
D
CTATT
Explanation: 

Detailed explanation-1: -The bases are paired by This is called complementary base pairs. Thus one strand of DNA is complementary to the other strand (opposite/matching).

Detailed explanation-2: -Complementary strands The complementary strand for DNA must follow the base pairing and polarity rules. Pairing means that A=T and G=C. Polarity means that the strands have to run in opposite directions.

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