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Biology
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Messenger RNA (mRNA) is used during translation to form polypeptides. Describe how mRNA is produced in the nucleus of a cell.

mRNA is messenger RNA which carries information from the genome to be translated into proteins. The DNA is transcribed into mRNA in the nucleus. DNA helicase breaks the hydrogen bonds of DNA into sense an...

Answered by Ryley C. Biology tutor
2303 Views

How can the transmission of salmonella be reduced?

Washing hands (vomiting, diarrhoea) Isolation Not sharing utensils or cutlery

Answered by Sophie A. Biology tutor
1933 Views

Compare the mammalian heart to that of an amphibian. Use a diagram.

Four mark question Can use drawn example to show the comparison of a three chambered heart to that of a four chambered heart.(2)Name the different parts of the heart. Mammalian is two atria, two ventricle...

Answered by Sophie A. Biology tutor
2905 Views

What is mitosis?

Mitosis is the DNA replication stage in somatic cells (non sex cells). It involves replication of DNA and ONE division of DNA to produce two genetically identical daughter cells. The stages specific to mi...

Answered by Selina N. Biology tutor
2560 Views

Explain how a protein is synthesised

The process starts in the nucleus A gene (section of DNA coding for a protein) unwinds, and the 2 DNA strands making it up unzip Transcription then occurs - one DNA strand is used as a template to make mR...

Answered by Peter P. Biology tutor
2006 Views

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