B2 - Cell Division and Inheritance 0.0 / 5 ? BiologyInheritanceCell DivisionGCSEAQA Created by: 11jc01Created on: 31-03-16 16:18 Chromosome Long molecule found in the nucleus of all cells; made of DNA 1 of 20 Gamete A specialised sex cell formed by meiosis 2 of 20 Fertilisation The fusion of the male and female gametes 3 of 20 Zygote A cell formed by the fusion of the nuclei of a male sex cell and female sex cell (gametes) 4 of 20 Mitosis Cell division that forms to daughter cells, each with the same number of chromosomes as the parent cell 5 of 20 Meiosis Cell division that forms daughter cells with half the number of chromosomes of the parent cell 6 of 20 Gene Part of a chromosome made up of DNA; controls certain characteristics 7 of 20 Allele An alternative form of a particular gene 8 of 20 Sexual Reproduction When you individuals are produced that aren't genetically identical to the parents; involving the fusion of gametes 9 of 20 Dominant An allele that only needs to be present once in order to be expressed; represented by a capital letter 10 of 20 Recessive An allele that will only be expressed if there are two present; represented by a lower case letter 11 of 20 Genotype (HIGHER TIER) The combination of alleles an individual has for a particular gene, e.g. BB, Bb or bb 12 of 20 Heterozygous (HIGHER TIER) An individual who carries to different copies of the allele, e.g. Bb 13 of 20 Homozygous (HIGHER TIER) An individual who carries two copies of the same allele, e.g. BB or bb 14 of 20 Phenotype (HIGHER TIER) The expression of the genotype, i.e. the characteristic shown 15 of 20 Mendel An Austrian monk who studied inheritance 16 of 20 Stem cell A human embryo cell or adult bone marrow cell that has yet to differentiate 17 of 20 DNA A.k.a. deoxyribo nucleic acid. Nucleic acid molecules that contain genetic information and make up chromosomes 18 of 20 Polydactyly Genetic disorder caused by a dominant allele where people have extra fingers or toes 19 of 20 Cystic fibrosis Genetic disorder caused by a recessive allele is affecting cell membranes 20 of 20
Comments
No comments have yet been made