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Chromosomes are made of what?

Answer and explanation

Correct answer: Nucleic acid and proteins

Chromosomes are thread-like structures in the nucleus made primarily of DNA, a nucleic acid, associated with specialised proteins called histones. DNA stores hereditary information, while the proteins help package and organise the long DNA molecule. Therefore the scientifically correct form of option A is nucleic acid and proteins. Water, fats, and starch may occur in cells for other purposes, but none of them alone forms chromosomes or carries their complete hereditary organisation.

Related tags

ChromosomesDnaGeneticsHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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