Reproduction and Inheritance

• DNA- Genetic information molecule
• DNA is made of two strands. The two strands are held togerther by complementary base pairs. There are 4 base pairs A, C, T, and G
• DNA is made up of 2 strands that are twisted togerther to the form of a double helix
• Gene- short section of DNA that codes characteristics
• A --> T

  C --> G
• Nucleus- Cell component which stores genetic material
• Chromosome- long strand of DNA
• An normal human body has 46 chromosomes of 23 pairs
• Allele- Particular version of an gene
• Dominant allele- only need 1 copy for it to be espressed
• Recessive allele- needs 2 copies for it to be espressed