Chromosomes are made up of
(a) DNA
(b) protein
(c) DNA and protein
(d) RNA
Answer: (C)
DNA is packed in the form of chromosomes. The double helix structure of a DNA gets wrapped around the proteins called histones which further wrap around themselves and then they form chromosomes. So chromosomes are made up of DNA and proteins (Histones).
Therefore, option (c) is correct.