THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
It delivers DNA’s instructions for making proteins.
|
|
|
It constructs proteins out of random amino acids.
|
|
|
It strings together two complementary DNA strands.
|
|
|
It strings together two complementary RNA strands.
|
Detailed explanation-1: -The role of mRNA is to carry protein information from the DNA in a cell’s nucleus to the cell’s cytoplasm (watery interior), where the protein-making machinery reads the mRNA sequence and translates each three-base codon into its corresponding amino acid in a growing protein chain.
Detailed explanation-2: -Messenger RNA Carries the Instructions for Making Proteins The process of making mRNA from DNA is called transcription, and it occurs in the nucleus. The mRNA directs the synthesis of proteins, which occurs in the cytoplasm.
Detailed explanation-3: -A second kind of RNA, called messenger RNA or mRNA, moves genetic information from the DNA to the ribosome. Messenger RNA provides the ribosome with the blueprints for building proteins. Amino acids are the building blocks of proteins.
Detailed explanation-4: -mRNA is created during transcription. During the transcription process, a single strand of DNA is decoded by RNA polymerase, and mRNA is synthesized. Physically, mRNA is a strand of nucleotides known as ribonucleic acid, and is single-stranded.
Detailed explanation-5: -During transcription, a piece of DNA that codes for a specific gene is copied into messenger RNA (mRNA) in the nucleus of the cell. The mRNA then carries the genetic information from the DNA to the cytoplasm, where translation occurs.