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Describe the process of translation in protein synthesis - Following transcription, the mRNA (messenger RNA) leaves the nucleus via the nuclear pores and enters the cytoplasm. It then attaches to a ribosome . - tRNA molecules in the cytoplasm carry a single amino acid .
Translation is a universal process in biology where a protein formed of amino acids is made by using messenger Ribonucleic acid (mRNA) to dictate the order of amino acids. Following transcription (the conversion of DNA into mRNA) an mRNA strand leaves the nucleus and enters the cytoplasm via the nuclear pore.
Describe the process of translation (4-6 mark) mRNA moves out of nucleus and attaches to ribosomet. RNA carrying amino-acids bind by their anticodons to the mRNA - by co mplementary base pairing.
Translation occurs in living cells. Explain how translation is carried out, from the initiation stage onwards. The mRNA was transcribed, (or copied) form a piece of DNA and it holds the information that is needed for protein synthesis. mRNA is read and the amino acids are eventually put together in a chain (polypeptide) that makes up a protein - and this is this process that is called translation.
Answers > Biology > A Level > Article Describe the process of transcription in detail (6 marks) Transcription is the process by which a section of DNA acts as a template for the creation of a complementary mRNA strand. mRNA is needed for the creation of a polypeptide.
Explain the significance of complementary base pairing in DNA to transcription and translation. Complementary base pairing conserves information from DNA to polypeptides . This is because adenine always pairs up with thymine and guanine pairs up with cytosine.
This is done because DNA is too big to leave the nucleus and travel to the ribosome, where protein synthesis occurs, whereas mRNA (this is messenger RNA) is small enough. Translation is the second process, here the mRNA is used to code for each amino acid. 3 bases are used to code for 1 amino acid. This happens at the ribosomes.
Transcription is the first step of protein synthesis and occurs within the nucleus of the cell. Within the cell's nucleus is the DNA.
Describe briefly the role of tRNA and mRNA in the translation process mRNA is produced from the transcription of DNA in the nucleus. Afte splicing has occured to remove non coding introns from the pre-mRNA, the mRNA leaves the nucleus via nuclear pores.
The primary mRNA strand is a single stranded molecule that can now undergo post transcriptional modifications to become mature mRNA through splicing. Once completed this can then migrate through the nucleur pore where it can attach to ribosomes attached on rough endoplasmic reticulum ready for translation.
