Question

The central dogma of molecular genetics states that the genetics information flows from :
(1) Amino acids → Proteins → DNA (2) DNA → Carbohydrates → Proteins
(3) DNA → RNA → Proteins (4) DNA → RNA → Carbohydrates

Answer 1

Answer:

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

DNA → RNA → Proteins

Answer 2

Answer: (3) DNA → RNA → Proteins

Explanation: Francis Crick proposed the central dogma in molecular biology which states the genetic information flows in one direction means unidirectional.

                        DNA → RNA → Proteins

But with the knwledge of enzymes later the new concept of reverse transcriptase was given by Temin and Baltimore in which the enzyme can carry reverse transcription.it occurs in some of the viruses that have RNA as their hereditary material or better we can say retroviruses.

The bidirectional central dogma is represented as

                                  DNA ⇔ RNA → Proteins