Question

What is the purpose of gene expression?

1) To synthesise a functional gene product
2) To regulate the process of gene expression
3) To be used by all known life
4) All of the above

Answer 1

The purpose of gene expression is to synthesize functional gene products, such as proteins, and it is regulated to ensure proteins are made correctly and efficiently. Regulation can occur at various stages, with regulatory proteins critically involved in controlling expression.

Step-by-step explanation:

The purpose of gene expression is to synthesize a functional gene product, such as a protein, which is essential for the cell to perform its necessary functions. Gene expression needs to be regulated to ensure that proteins are made at the right time and in the right amounts. Three stages where gene expression is regulated include transcription, RNA processing, and translation. Regulatory proteins play a crucial role in gene expression regulation by either activating or repressing transcription. They bind to specific DNA sequences and can increase or decrease the transcription of genes.

In summary, the complete answer to the student's question is: 1) To synthesize a functional gene product, which includes the synthesis of proteins from information encoded in DNA.