Inhertiance 5.0 / 5 based on 2 ratings ? BiologyDNA and geneticsA2/A-levelAQA Created by: Georgina NelsonCreated on: 27-09-13 15:01 Genotype The genetic makeup of a cell, an organism. 1 of 14 Phenotype composite of organisms observable characteristics or traits. 2 of 14 Gamete Reproductice cell that pairs up with another gamete during reproduction. 3 of 14 Nucleotide complex chemical made up of an organic base, a sugar and a phosphate. What DNA and RNA are made up of. 4 of 14 Homologous chromosomes Pair of chromosomes with same gene loci and therefore the same characteristics. 5 of 14 Homozygous conditions in which alleles of a particular gene are identical 6 of 14 Heterozygous conditions in which alleles of a particular gene are different. 7 of 14 Dominant allele term applied to an allele that is always expressed in the phenotype of an organism. 8 of 14 Recessive allele condition in which the effect of an allele is apparent and in the phenotype of a diploid organism only in the presence of another identical allele. 9 of 14 Haploid term referring to cells that contain only a single copy of each chromosome. 10 of 14 Diploid(2n) Term applied to cells in which the nucleus contains two sets of chromosomes. 11 of 14 Co-dominance condition in which both alleles for one gene in a heterozygous organism contribute to the phenotype. 12 of 14 Mutation A change in the sequence of bases in DNA. 13 of 14 Multiple alleles term used to describe a gene that has more than two possible alleles. 14 of 14
Organisms respond to changes in their internal and external environments AQA A2 Biology PART 7 of 9 TOPICS: Principals of homeostasis and negative feedback 5.0 / 5 based on 1 rating Teacher recommended
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