Gene, Chromosomes and DNA

HideShow resource information
View mindmap
  • Genes, Chromosomes and DNA
    • Alleles
      • Come in pairs
      • Either dominant or recessive
      • Homozogous= same alleles
        • eg XX
      • Hetreozygous- different alleles
        • eg Xx
      • Most characteristics are determined by alleles
    • Chromosones
      • Long strands of DNA molecules
      • Come in pairs
      • 23 chromosomes per sex cells
      • 23rd chromosome determines your sex
      • 23 pairs of chromosomes in each cells
    • Phenotype= physicals characteristics eg our looks
      • Genotype= the genes you inherit
    • Genotype= the genes you inherit
    • DNA
      • Gene= a sections of DNA
      • Long strands of DNA molecules
      • Deoxyribonucleic acid
      • Double helix joined by pairs
        • Adenine + Thymine
        • Cytosine + Guamine

Comments

No comments have yet been made

Similar Science resources:

See all Science resources »See all Genetic variation resources »