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Question

The central dogma of molecular genetics states that genetic information flows from :


A
DNA RNA Proteins
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B
DNA RNA Carbohydrates
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C
Amino acids Proteins DNA
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D
DNA Carbohydrates Proteins
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Solution

The correct option is B DNA $$\rightarrow$$ RNA $$\rightarrow$$ Proteins
The molecular path of flow of genetic information is explained by central dogma. Accordingly, the flow of genetic information is unidirectional and involves four processes. Replication of DNA copies the genetic information present in it which is transcribed into RNA by RNA polymerase enzyme. The RNA sequence of ribonucleotides is translated into an amino acid sequence of polypeptides by the process of translation. Thus the flow of genetic information is unidirectional and follows the path: DNA-->RNA-->protein. The correct answer is A.

Chemistry

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