Key language for monohybrid inheritance
Key language for monohybrid inheritance
Humans are diploid, so most body cells contain two homologous chromosomes and therefore two alleles of each gene. A gene is a length of DNA at a fixed locus, and different versions of that gene are called alleles.
Step-by-step lessons on Edexcel A A Level Biology Monohybrid inheritance and genetic screening. Each one builds up to exam-style questions. Build a strong foundation in cell biology and biochemistry early on, since later topics on genetics, ecology and physiology all draw on these core concepts.