LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

APPLIED BIOTECHNOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the central dogma of biology?
A
RNA makes DNA and DNA makes a protein
B
DNA makes proteins and proteins make RNA
C
DNA makes RNA and RNA makes a protein
D
RNA makes a protein and DNA
Explanation: 

Detailed explanation-1: -The central dogma of molecular biology is a theory stating that genetic information flows only in one direction, from DNA, to RNA, to protein, or RNA directly to protein.

Detailed explanation-2: -The central dogma of molecular biology states that DNA contains instructions for making a protein, which are copied by RNA. RNA then uses the instructions to make a protein. In short: DNA → RNA → Protein, or DNA to RNA to Protein.

Detailed explanation-3: -The flow of information from DNA to RNA to proteins is one of the fundamental principles of molecular biology. It is so important that it is sometimes called the “central dogma.” Through the processes of transcription and translation, information from genes is used to make proteins.

Detailed explanation-4: -The central dogma of molecular biology suggests that the primary role of RNA is to convert the information stored in DNA into proteins.

Detailed explanation-5: -During transcription, the enzyme RNA polymerase (green) uses DNA as a template to produce a pre-mRNA transcript (pink). The pre-mRNA is processed to form a mature mRNA molecule that can be translated to build the protein molecule (polypeptide) encoded by the original gene.

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