Genetics: DNA Testing, Ancestry DNA, health DNA test, genetic testing benefits.
Genetics and DNA Testing Genetics and DNA Testing What Creates Genetics? Genetics is the study of heredity and variation in living organisms. Its foundation comes from: 1. DNA (Deoxyribonucleic Acid) The molecule that encodes genetic instructions. Made of nucleotides (A, T, C, G) in a double-helix structure. 2. Genes & Chromosomes Genes are DNA segments that code for traits. Chromosomes are long DNA strands packed with proteins (humans have 23 pairs). 3. Mutations & Genetic Variation Random changes in DNA create diversity (evolution by natural selection). 4. Inheritance (Mendelian & Non-Mendelian) Parents pass genes to offspring via sexual or asexual reproduction. What Creates a DNA Test? DNA testing analyzes genetic material to reveal information about ancestry, health, or ide...