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.
Chickens lay eggs for around 4-5 years. Then they stop, they run out. They sort of go into a chick-menopause state (hopefully minus the need for the pounds of chocolate and glasses of red wine). There is a caveat to this, however. think you answered by question â that hens do have a finite number of eggs â but Iâm perplexed that they would be used up so soon. My 3 girls are Barred Rock/RIR and laid at 80% daily for nearly 1 1/2 years, then basically quit. Iâm getting 2-4 eggs a week now and they are not yet 2 1/2 years old.