Mendel was not the first to propose genetics however, he was the first to figure out that genes (he called them elements) came in pairs and that one member of each pair came from each parent. As a result of his realization regarding pairs of genes, Mendel determined what are called Mendel's laws of inheritance..
Chickens usually don't simply stop laying eggs when they get to a certain age, but they will lay fewer as they get older.That said, most laying breeds will lay more or less productively in backyard terms for five or seven years.hickens usually don't simply stop laying eggs when they get to a certain age, but they will lay fewer as they get older.
The hen will lay about one egg a day, for 3 to 8 eggs. They will start sitting on the eggs when she is done laying eggs. Both mom and dad help with the incubation but mom does most of it. The eggs should start hatching about 14 days after they start sitting.