Flashcards
Lesson 1: The Nature of Heredity
Cards in this deck (11)
- 1deoxyribonucleic acid (DNA)• a molecule that carries genetic information in cells
• contains all information necessary to make a complete organism - 2DNA structure• shaped like a double-stranded helix
• composed of one phosphate group, one 5 carbon sugar, one nitrogenous base - 3DNA is made by…1. Enzyme splits
2. Enzymes match As & Ts and Cs & Gs
3. Enzymes continue building along DNA
4. Stops when both strands are an exact copy of each other - 4Four building blocks of DNAAdenine
Thymine
Cytosine
Guanine - 5Genea segment of DNA molecule that codes for a particular trait; found at a specific location on a chromosome
- 6Locusthe location of a gene on a chromosome
- 7Sequenceorder of nucleotides in a DNA strand
- 8Lactasean enzyme that breaks down a sugar found in milk
- 9Myosina mechanical protein that allows muscles to contract
- 10Collagena structural protein found in skin and cartilage
- 11Hemoglobina transport protein that allows red blood cells to carry oxygen