What shape does a DNA molecule have?, single strand, double helix, circle, triple helix, Which nitrogenous bases always pair together in DNA?, Adenine (A) – Guanine (G), Cytosine (C) – Thymine (T), Adenine (A) – Thymine (T) and Guanine (G) – Cytosine (C), Adenine (A) – Cytosine (C), Why is the double helix shape important for DNA?, It allows DNA to fold into proteins., It keeps DNA stable and helps copy genetic information accurately., It makes DNA visible under a microscope., It stores energy for the cell., If adenine (A) makes up 25% of a DNA sample, what percentage of thymine (T) would there be?, 25%, 30%, 50%, 75%, How does DNA make each person unique?, By storing the same instructions in every cell., By controlling traits through the order of its bases. , By changing its shape every day., By breaking down food in the body.

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