B5:Genetic Diagrams & Genetic Terminology OCR Gateway (9-1) 0.0 / 5 ? Biologyb5 genetic diagrams and genetic terminologyGCSEOCR Created by: AleenaCreated on: 26-03-18 20:07 What is a gene? section of DNA that controls a characteristic 1 of 7 what is an allele? different versions of the same gene 2 of 7 what does Homozygous mean? you have the same alleles 3 of 7 what does heterozygous mean? you have different alleles 4 of 7 What is meant by dominant, in terms of alleles? The stronger allele, only one allele needed for characteristic to be expressed in the phenotype 5 of 7 What is meant by recessive, in terms of alleles? The weaker allele, 2 alleles are needed for characteristic to be expressed in the phenotype 6 of 7 What the 2 types of genetic diagrams? Punnett Sqaure and Genetic Cross 7 of 7
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