Question

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8 A DNA molecule is made up of long chains of nucleotides. A DNA nucleotide consists of a ____________, a ______________, and a nitrogenous base.

9 In DNA, the four bases are _____________, _____________, ______________, and _____________. These bases are called complementary bases as Adenine (A) bonds only with ___________( ) and Guanine (G) bonds only with __________( ).

Answer 1

1. sugar molecule

2. phosphate group

3. adenine

4. cytosine

5. guanine

6. thymine

7. thymine

8. cytosine