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B
RNA
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C
Chromosome
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D
All of the above
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Solution
The correct option is B DNA DNA is the polymer of nucleotides that carry genetic information in the sequence of nucleotide bases. The functional segment of the DNA is known as a gene. Mutation is the sudden heritable change in the nucleotide and nucleoside segment of the DNA.
Chromosomes are the threadlike structures, present in the nucleus, and are made up of proteins and DNA. DNA is the site of mutation which is carried by chromosomes from one generation to next.
RNA is the polymer of ribonucleotides which is synthesised using DNA template strand and thus carries the mutational changes in DNA to the protein via translation. Thus, genetic mutations occur in DNA which is manifested in altered protein structure and function via RNA and is carried to next generation via chromosomes. The correct answer is A.