Term

Gregor Mendel

Definition

- Father of genetics Presented the laws of inheritance by studying pea plants. Proposed that invisible internal units of information account for observable traits, and that these factors (later known as genes) are passed from one generation to the next.

Term

Walther Flemming

Definition

Reported his discovery of chromosomes and mitosis

Term

DNA

Definition

- A carrier of genetic inheritance passed from one generation to the next. - A nucleic acid made of 4 nucleotides (ATGC) , each containing a phosphate group, deoxyribose sugar (pentose sugar) and a nitrogenous base (purines and pyrimidines) - Composed of 2 strands of complementary nucleotides forming a double helix. Strands are antiparallel: One strand runs 5' to 3' and the other is 3' to 5'. 1 strand determines the other - Only molecule that can replicate (makes 2 copies out of 1) - P and S form backbone of DNA A+T and G+C pairings of nucleotides through HYDROGEN BONDING