Question

Which of the following organelles contain DNA? (i) Mitochondria (ii) Chloroplasts (iii) Golgi bodies (iv) Ribosomes

(a) (i) and (ii)

(b) (ii) and (iii)

(c) (i) only

(d) (iv) only

Answer 1

The correct option is: (a) (i) and (ii)

(i) Mitochondria

(ii) Chloroplasts

Explanation:

DNA is present inside the nucleus, mitochondria and chloroplast. Mitochondria and chloroplasts are double membranebound cell organelles and both contain DNA, which is circular and relatively small and double stranded. Mitochondrial DNA varies in size starting from 5 μm to 30 μm. Average length of chloroplast DNA is 45 μm.