Transcription is the first step in gene expression which consists of copying the DNA sequence of a gene to produce a RNA molecule. There are enzymes called RNA polymerases which perform this process of transcription. These enzymes bind nucleotides (the monomers which are part of the nucleic acids) to create a RNA strand using a DNA strand as a mold.

A promoter is a region of DNA that controls the initiation of transcription of a given portion of DNA to RNA. Therefore they promote the transcription of a gene. The promoter region is composed of a specific sequence of DNA located just where the starting point of the DNA transcription is and contains the information needed to activate or deactivate the gene it regulates. The promoter has a binding site for the RNA polymerase enzyme in charge of mRNA synthesis and when it recognizes this site, transcription begins.

6 0

3 years ago

Define Eukaryote in your own words

ozzi

Answer:

a eukaryote is DNA(genetic material)in the form of chromosomes within the nucleus and it contains all living organisms

Explanation:

6 0

3 years ago

Se introduce a un ecosistema una especie que no es originaria de este mismo. ¿Qué consecuencias traería consigo considerando el

Fittoniya [83]

no podrá obtener estabilidad y no encontrará los recursos a los que está acostumbrado.

5 0

3 years ago