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Transcription is the process of transcribing the DNA code into another type of code or message - mRNA (messenger RNA). An enzyme called RNA polymerase binds to a specific part of a DNA sequence called the promoter (this acts as a signal to the cell to begin transcription). The DNA then must unzip and unwind to expose the two strands of DNA. One ...
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. An enzyme called DNA helicase binds to a complementary start codon on the DNA and brakes the H bonds causing the DNA to unwind, exposing its bases. Each exposed DNA base ...
Describe the process of translation. 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.
Transcription is the process of using DNA from the nucleus of a cell as a template to synthesise mRNA (messenger RNA). An enzyme called DNA helicase unwinds and unzips the DNA at the start of the gene (called the promoter region of the gene) by breaking the hydrogen bonds between complementary DNA bases. Another enzyme, RNA polymerase then uses ...
Transcription is the process by which a DNA sequence is copied into a complementary RNA sequence. RNA polymerase binds to the promoter region of the DNA chain and causes the unwinding and separation of the DNA strands, melting the bonds between the strands. The RNA polymerase binds nitrogenous bases in a complementary manner to the antisense ...
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. Another molecule of tRNA with another amino-acid attaches to the mRNA on the next codon along. The two amino-acids on the tRNA form a peptide bond.
Describe the process of DNA transcription: The DNA double helix unravels as helicase breaks the hydrogen bonds between base pairs. RNA polymerase binds to the promoter region on the DNA strand. The RNA polymerase transcribes the DNA coding strand by bringing free RNA nucleotides to bind. The complementary nucleotides bind with phosphodiester ...
Transcription is an enzymatic process, catalysed by an enzyme called RNA polymerase that can generate an RNA molecule using the DNA molecule as a template. Additional proteins termed transcription factors are also involved, which regulate the process. Transcription is carried out in three main steps: initiation, elongation and termination.
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. They also have 3 base pairs of RNA molecules that correspond to that amino acid.
Start with the unwinding of the DNA- this must be done so that the enzymes have access to free nucleotide bases in order for semi conservative replication. This is done by the enzyme helicase, and breaks the hydrogen bonds between the nucleotides. I remember this by the H in helicase and hydrogen. This allows me to remember the role of helicase ...