Relating Nucleic Acid & Amino Acid Sequences A triplet is a sequence of three DNA bases that codes for a specific amino acid A codon is a sequence of three mRNA bases that codes for a sp...
Translation 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 (prote...
Eukaryotic Transcription The genome within eukaryotic cells contains many non-coding sections Non-coding DNA can be found: Between genes, as non-coding multiple repeats Within genes, as intr...
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 复习笔记 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 复习笔记 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 复习笔记 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 复习笔记 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...
