Genetics or genes are lengths of DNA along a chromosome. Each gene controls the making of a particular protein. Only 3% of DNA in human chromosomes is in tje form of genes. The rest is known as 'junk DNA'. Humans have 46 chromosomes in each cell. Each gene has a corresponding gene controlling the same trait on the same place on its partner chromosome. We habe 2 genes for each trait. One from our mother/father.Gregor Mendel is the father of genetics.we have inherited and aquired traits...... KEYWORDS TO KNOW: expressed,, genotype,, phenotype,,dominant,,recessive,,mendelian crosses.
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Genetics is the study of genes, genetic variation, and heredity in organisms. It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically.