contestada

which of the following shows the correct order in which genes are expressed? a. DNA to rna to proteins. b. rna to DNA to proteins. c. rna to proteins to DNA. d. DNA to proteins

Respuesta :

A.

This is the central dogma of Biology that I was forced to memorize.

"DNA is transcribed into RNA which is then translated into proteins"

Answer:

a. DNA to RNA to proteins.

Explanation:

DNA is the genetic material which is transcribed into RNA in nucleus. The mRNA leaves nucleus and joins ribosomes for the process of protein synthesis. The nucleotide sequence of mRNA serves as template for protein synthesis. Hence gene expression occurs in following direction:

DNA------> RNA--------> Protein

This unidirectional flow of genetic information is also called as central dogma.