BIOMOLECULES AND ENZYMES

BIOLOGY

STRUCTURE OF PROTEINS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the function of transcription?
A
To make a copy of mRNA that can take the instructions of DNA to the ribosome
B
To make a new copy of DNA for a new cell that will be produced during mitosis
C
To join together amino acids at the ribosome to make proteins
D
To divide germ cells into four haploid cells for reprodcution
Explanation: 

Detailed explanation-1: -The goal of transcription is to make a RNA copy of a gene’s DNA sequence. For a protein-coding gene, the RNA copy, or transcript, carries the information needed to build a polypeptide (protein or protein subunit). Eukaryotic transcripts need to go through some processing steps before translation into proteins.

Detailed explanation-2: -Transcription is carried out by an enzyme called RNA polymerase and a number of accessory proteins called transcription factors.

Detailed explanation-3: -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.

Detailed explanation-4: -Transcription is the process by which DNA is copied (transcribed) to mRNA, which carries the information needed for protein synthesis.

There is 1 question to complete.