Mono-hybrid Inheritance 0.0 / 5 ? BiologyDNA and inheritanceGCSEAQA Created by: lydiaheathCreated on: 11-04-15 17:28 How many pairs of chromosomes do humans have? 23 pairs 1 of 9 What are chromosomes? a structure that carries genetic information 2 of 9 what are alleles? different versions of a gene that code for different versions of characteristics 3 of 9 what does heterozygous? 2 alleles that are different 4 of 9 what do you call an allele pair for each characteristic? genotype 5 of 9 the physical expression of an allele pair is the... phenotype 6 of 9 what are the main symptoms for cystic fibrosis? thick sticky mucus on the lungs- prone to infection- cant digest food 7 of 9 Is cystic fibrosis a dominant or recessive allele? What does this therefore mean? its recessive so you must have a homozygous pair to have the disease. 8 of 9 what is a gamete? a sex cell that has half the number of chromosomes that an ordinary cell has 9 of 9
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