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EOC Scientific Method
EOC Scientific Method

... Nucleolus – makes ribosomes Nucleus – holds DNA Nuclear Envelope – surrounds nucleus and has pores Ribosomes – make proteins Centrioles – Used in cell reproduction Lysosomes – Sac with enzymes for digestion Cilia/ Flagella – Movement Cytoplasm – Jelly-like substance organelles are floating in ...
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... capture the importance of its function, it has a role in breaking down more than 15% of the drugs currently in use, and as many as 35% of people carry a slower acting form of this enzyme. The portion of Henry’s DNA that codes for the CYP2C9 enzyme contains more than 1,400 nucleotides. Henry carries ...
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Diapositiva 1 - Programma LLP
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... They realized that they could use a simple artificial polynucleotide as a messenger, rather than a natural messenger RNA, much more complex, in order to identify the polypeptide encoded by this artificial messenger RNA. ...
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Primary transcript



A primary transcript is the single-stranded ribonucleic acid (RNA) product synthesized by transcription of DNA, and processed to yield various mature RNA products such as mRNAs, tRNAs, and rRNAs. The primary transcripts designated to be mRNAs are modified in preparation for translation. For example, a precursor messenger RNA (pre-mRNA) is a type of primary transcript that becomes a messenger RNA (mRNA) after processing.There are several steps contributing to the production of primary transcripts. All these steps involve a series of interactions to initiate and complete the transcription of DNA in the nucleus of eukaryotes. Certain factors play key roles in the activation and inhibition of transcription, where they regulate primary transcript production. Transcription produces primary transcripts that are further modified by several processes. These processes include the 5' cap, 3'-polyadenylation, and alternative splicing. In particular, alternative splicing directly contributes to the diversity of mRNA found in cells. The modifications of primary transcripts have been further studied in research seeking greater knowledge of the role and significance of these transcripts. Experimental studies based on molecular changes to primary transcripts the processes before and after transcription have led to greater understanding of diseases involving primary transcripts.
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