Mendelian genetics: Law of Segregation (the First Law)
The principle was discovered by Gregor Mendel during his experiments with pea. Each organism contains two alleles for each trait; these alleles segregate during meiosis such that each gamete contains only one of the alleles. An offspring thus receives one allele for each trait from each parent. Parental generation: the red parent contains two dominant alleles, the white parent contains two recessive alleles. F1 generation: All offspring receive one dominant and one recessive allele. The dominant allele influences their appearance - they all are red. F2 generation: Offspring with two dominant alleles is red, as well as an offspring with one dominant and one recessive allele. Only an offspring with two recessive alleles is white.
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Keywords: allele, colour, descendant, dominant, flower, gamete, gene, generation, genetics, gregor, heredity, illustrated, illustration, inheritance, law, mendel, nature, offspring, parents, phenotype, principle, recessive, red, scheme, science, segregation, white
