AQA A Level Biology復習筆記4.2.3 Transcription
Transcription A?gene?is a?sequence of nucleotide bases?in a DNA molecule that?codes for the production of a specific sequence of amino acids, that in turn make up a?specific polypeptide?(pro...
Transcription A?gene?is a?sequence of nucleotide bases?in a DNA molecule that?codes for the production of a specific sequence of amino acids, that in turn make up a?specific polypeptide?(pro...
The Structure of mRNA and tRNA Like DNA, the nucleic acid RNA (ribonucleic acid) is a?polynucleotide?– it is made up of?many nucleotides?linked together in a?long chain Like DNA, RNA nucleot...
Edexcel IGCSE Maths 復習筆記 4.9.2 3D Pythagoras & SOHCAHTOA What are Pythagoras & SOHCAHTOA? Pythagoras’ Theorem?helps us find missing side lengths of a right-angled triangle It is also fr...
Edexcel IGCSE Maths 復習筆記 4.9.1 SOHCAHTOA What is SOHCAHTOA? SOHCAHTOA is a mnemonic – ie a way to remember the 3 important formulas for sin (sine), cos (cosine), and tan (tangent) In a right-an...
Edexcel IGCSE Maths 復習筆記 4.8.1 Pythagoras Theorem What is Pythagoras? Pythagoras was a Greek mathematician who lived over 2500 years ago He is most famous for Pythagoras’ Theorem, which include...
Edexcel IGCSE Maths 復習筆記 4.7.1 Intersecting Chord Theorem What are circle theorems? Circle?theorems?are?angle?(and?distance)?properties?that arise when lines and shapes drawn within or connecte...
Edexcel IGCSE Maths 復習筆記 4.6.4 Circle Theorems - Alternate Segment What you need to know Alternate Segment Theorem The Alternate Segment Theorem states that the angle betwe...
Edexcel IGCSE Maths 復習筆記 4.6.3 Circle Theorems - Cyclic Quadrilaterals More advanced circle theorems 1. Opposite angles in a cyclic quadrilateral add up to 180° Double-check is that all ...
Edexcel IGCSE Maths 復習筆記 4.6.2 Circle Theorems - Tangents What do I need to know about tangents 1. A radius and a tangent are perpendicular Note that?perpendicular?lines meet at right angles &n...
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