Biology 26/09/19 0.0 / 5 ? BiologyDNA and inheritanceGCSEAQA Created by: jmghouriCreated on: 06-10-19 17:35 what is mitosis? The type of cell division that leads to growth or repair 1 of 12 whats an allele? a different version of the same gene 2 of 12 whats a gene? a section of DNA that codes for a characteristic 3 of 12 whats a genome? all the genetic material of a organism 4 of 12 whats a genotype? the genetic material/make-up of an organism(represented by the letters A,T,C and G 5 of 12 whats a phenotype? the physical characteristics or traits displayed by an organism. these are coded for by the genotype 6 of 12 whats a dominant allele? an allele that codes for a characteristic that will always be express, if only one dominant allele is present. represented by a capital letter 7 of 12 whats recessive? an allele that codes for a characteristic that will only be expressed if two alleles are present. represented by a lower case letter 8 of 12 whats heterozygous? the individual has two different alleles for a characteristic(Bb) 9 of 12 whats homozygous? an individual has two alleles for a characteristic that are the same(BB or bb) 10 of 12 whats a gamete? a cell that contains half the normal number of chromosomes. (sex cells) e.g. sperm,egg in animals or pollen and egg in plants 11 of 12 whats a chromosome? a packet of genetic information found in the nucleus of a cell, humans have 46 of them and 23 pairs 12 of 12
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