MODULE 5: DNA, Genes, Chromosomes

• DNA

  • is the material that makes up genes
  • found inside the nucleus
• Genes

  • are sequences within the DNA
  • located on DNA strands
• Chromosomes

  • Are structures that organize and carry the DNA inside the nucleus
• ARRANGE THESE STRUCTURES FROM THE

  LARGEST TO THE SMALLEST:

  DNA

  chromosome

  nucleotide

  gene

  1. Chromosome
  2. Gene
  3. DNA
  4. Nucleotide
• RNA

  • Stands for ribonucleic acids. It is a single-stranded molecule
• DNA contains four bases:

  1. Adenine (A)
  2. Guanine (G)
  3. Cytosine (C)
  4. Thymine (T)
• A and G are double-ring structures called?

  purines
• T and C are single-ring structures called?

  Pyrimidines
• Nucleutide

  • The building block of DNA. It is made up of four bases, a five-carbon sugar ,deoxyribose, and a phosphate group.
• DNA replication

  • Known as semi-conservative replication
• Who is the father of Genetics?

  Gregor Mendel
• The science that deals with the study of how traits are inherited from parents to offsprings is called?

  Genetics
• The component in the nucleus of a cell that codes and stores genetic information is called?

  DNA