Multiple choice

Chromosomes are composed of _________.

  1. DNA and vitamins

  2. DNA and proteins

  3. DNA and lipids

  4. proteins and lipids
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Reason: Nucleus contains chromosomes, which are visible as a rod shaped structures only when the cell is about to divide chromosomes composed of DNA and protein. DNA (Deoxyribose nucleic acid) helps in carrying information from parents to next generation. DNA is negatively charged and proteins associated with it are positively charged. The role of protein is to pack DNA. Vitamins or lipids cannot be used to pack DNA.Therefore (B) is correct answer 

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