Inheritance Dual Award 0.0 / 5 ? BiologyDNA and inheritanceIGCSEEdexcel Created by: Olivia BoylanCreated on: 27-11-18 17:30 chromosomes Are X shaped things found in nucleus. Humans have 23 pairs and they contain DNA, and also genes 1 of 15 gene a section of DNA molecule, or part of a chromosome, gives information for a protein 2 of 15 allele when you have two different versions of the same gene 3 of 15 dominant an allele will determine the characteristic, as it s dominant over the recessive allele 4 of 15 recessive an allele which will not usually determine the characteristic 5 of 15 homozygous is an individual with two alleles of the same variation (e.g. hh or HH) 6 of 15 hetrozygous an individual with two alleles of different types (e.g. Hh) 7 of 15 genotype are you homozygous or heterozygous 8 of 15 phenotype what your genotype means (e.g. if you are homozygous what characteristics does that have) 9 of 15 mitosis the type of cell division one cell splits up into two new identical cells 10 of 15 meiosis the type of cel division where two gamete cells combine to form four genetically different cells 11 of 15 diploid a cell which contains all 46 chromosomes 12 of 15 haploid a cell which contains just half the normal number of chromosomes 13 of 15 gamete either a sperm or egg cells 14 of 15 zygote after the gametes have fused together they form a zygote 15 of 15
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