Heredity

• DNA (Deoxyribonucleic acid)
• Gene


  the basic unit of heredity
• Locus


  the specific location of a gene on a chromosome
• Genome


  the total heredity endownment of DNA of a ceel
• Somatic cell


  all body cells except reproductive cell
• Gamete


  reproductive cells
• Chromosome


  elongated cellular structure composed of DNA & protein

  (the vehicles which carry DNA cells)
• Diploid


  each chromosome type is represented by two homologous chromosomes
• Haploid


  each chromosome type is represented by only one chromosome
• Homologous chromosomes 


  chromosomes of the same size and shape which carry the same type of gene
• chromatid


  one of two duplicated chromosomes connected at the centromere
• Centromere


  region of chromosomes where microtubules attach during mitosis and meiosis