AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA REPLICATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which best describes the interaction between DNA and RNA during protein synthesis?
A
RNA carries the code to the nucleus where DNA translates the code into a protein
B
DNA travels to the ribosome where RNA translates the code into a protein
C
RNA carries the code from DNA in the nucleus to the ribosome for protein synthesis
D
DNA travels to the cytoplasm while RNA remains in the nucleus
Explanation: 

Detailed explanation-1: -The Central Dogma of Molecular Biology states that DNA makes RNA makes proteins (Figure 1). The process by which DNA is copied to RNA is called transcription, and that by which RNA is used to produce proteins is called translation.

Detailed explanation-2: -What statement best describes the role of DNA in protein synthesis? DNA carries the amino acid to the ribosomes.

Detailed explanation-3: -Messenger RNA (mRNA) carries the instructions from DNA that specify the correct order of amino acids during protein synthesis during translation. In this process, the information in mRNA is interpreted by a second type of RNA called as transfer RNA (tRNA) with the aid of ribosomal RNA and associated protein.

Detailed explanation-4: -To manufacture protein molecules, a cell must first transfer information from DNA to mRNA through the process of transcription. Then, a process called translation uses this mRNA as a template for protein assembly.

There is 1 question to complete.