Describe how mRNA is produced in the nucleus of a cell.

The process in which mRNA is produced is called transcription.Firstly, DNA Helicase breaks Hydrogen bonds to unzip the DNA molecule and expose the base pairs. Then nucleotides enter through nuclear pores and line up with complimentary base pairs in the template strand. Another enzyme, RNA polymerase joins the nucleotides together to form pre-RNA. The pre-RNA needs to be spliced to remove the introns and create mRNA.

JS

Related Biology A Level answers

All answers ▸

Describe the processes of obtaining desired genes and their subsequent transfer into the cells of organisms.


Why is the resting membrane potential of a neurone negative when there are positive ions inside the cell?


The MMR vaccine gives protection against measles, mumps and rubella. How? (4 marks)


Give the name and describe the process by which macrophages kill pathogens.