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.
A chicken may take from about 5 minutes to an hour to lay her egg. She will lay an egg a day at approximately the same time. It takes about 20 hours for an egg to be made inside her body.That's why she is limited to one egg per day.It takes 20 hours to make an egg. It takes 20 hours to make an egg and between 5 minutes and an hour to lay it, depending on the hen. rooster is necessary to have fertilized eggs, but a hen will lay eggs even if no rooster is present. Incubation time for fertilized eggs is 21 days. Days 1-18 require an internal temperature of 99.5 F and a humidity of 50-60%. Days 18-21 require an internal temp of 99.5 and a humidity of 70-80%.