Companion PDF worksheet for Edexcel IGCSE Biology Lecture 42 - Nucleic Acids. Contains short answer questions, an activity requiring lateral thinking and exam-style questions.
Specification Point 3.16B - Describe a DNA molecule as two strands coiled to form a double helix, the strands being linked by a series of paired bases: adenine (A) with thymine (T), and cytosine © with guanine (G).
Specification Point 3.17B - Understand that an RNA molecule is single stranded and contains uracil (U) instead of thymine (T).
Specification Point 3.18B - Describe the stages of protein synthesis including transcription and translation, including the role of mRNA, ribosomes, tRNA, codons and anticodons.
Complete set of Chapter 5 Worksheets are available.
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