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The segment of DNA which acts as the instruction manual for the synthesis of the protein is
A
Nucleoside
B
Nucleotide
C
Ribose
D
Gene
Detailed Solution
DNA carries the hereditary information of the cell in the sequence of its bases.
A gene is a segment of DNA whose base sequence codes for the amino acid sequence of one polypeptide (protein); it is transcribed into mRNA, which is then translated.
So the gene works as the instruction manual for the synthesis of a protein.
A nucleoside (base + sugar) and a nucleotide (base + sugar + phosphate) are only building units of nucleic acids, and ribose is the sugar of RNA.
Hence the segment is the gene.
A gene is a segment of DNA whose base sequence codes for the amino acid sequence of one polypeptide (protein); it is transcribed into mRNA, which is then translated.
So the gene works as the instruction manual for the synthesis of a protein.
A nucleoside (base + sugar) and a nucleotide (base + sugar + phosphate) are only building units of nucleic acids, and ribose is the sugar of RNA.
Hence the segment is the gene.