Inheritance 0.0 / 5 ? BiologyDNA and inheritanceIGCSEEdexcel Created by: HLeiperCreated on: 02-04-14 13:26 Nucleus contains chromosomes on which genes are located 1 of 14 Gene a section of a molecule of DNA and that codes for a specific protein 2 of 14 DNA molecule two strands coiled to form a double helix, the strands being linked by a series of paired bases; A with T and C with G 3 of 14 Alleles an alternative form of a gene which give rise to differences in inherited characteristics 4 of 14 Dominant An allele that sways exerts its full effect on the phenotype 5 of 14 Recessive an allele that can be 'over powered' by dominant alleles. Only seen if there are 2 recessive alleles in the genotype 6 of 14 Homozygous a genotype in which two alleles are the same 7 of 14 Heterozygous a genotype in which two alleles are different 8 of 14 Phenotype how the genotype is expressed 9 of 14 Genotype the two alleles that together make up one gene 10 of 14 Random fertilisation produces genetic variation of offspring 11 of 14 Human Cells Diploid Number 46 Haploid Number 23 12 of 14 Mutation Rare and a random change in genetic material that can be inherited. Many harmful but some beneficial 13 of 14 Resistance to antibiotics increase bacterial populations and can lead to infections difficult to control 14 of 14
Comments
No comments have yet been made