Biology 5090 · O Level · DNA

DNA — practice question

(a)[5]

Use terms from the list to complete Table 3.1 by matching each description with the correct term.

(b(i))[1]

State the term used for the shape of the DNA molecule.

(b(ii))[1]

Most DNA in bacterial cells is located in one large loop in the cytoplasm. Name another structure in bacterial cells that contains DNA.

(b(iii))[1]

State the type of molecule shown by the letters A, T, G and C in Fig. 3.1.

(b(iv))[2]

Outline why the order of A, T, G and C in DNA is important.

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