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Question

The diagram shows an important concept in the genetic implication of DNA. Fill in A to C,
DNAAmRNABproteinProposedby

A
A - Transcription, B - Transcription, C - Erevin Chargaff
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B
A - Transcription, B - Translation, C - Francis Crick
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C
A - Translation, B - Extension, C - Rosalind Franklin
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D
A - Transcription, B - Replication, C - James Watson
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Solution

The correct option is B A - Transcription, B - Translation, C - Francis Crick
RNA polymerase catalyzes the synthesis of polyribonucleotide chains (RNA) using ribonucleoside triphosphates as substrates and DNA as template via the process of transcription. The original primary transcript of transcription is processes into mRNA which serve as template for synthesis of polypeptides in cytoplasm. Synthesis of a polypeptide chain using mRNA template is known as translation. This path of gene expression that includes transcription and translation was proposed by Crick and is known as central dogma of molecular biology. DNA polymerase catalyzes the synthesis of polydeoxyribonucleotide chains (DNA) using deoxyribonucleoside triphosphates as substrates and DNA as template via the process of replication. Correct answer is B.

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