Meiosis and fertilization can result in a trait like sickle cell being expressed in offspring because meiosis transfers genetic characteristics from parent to offspring.
<h3>How sickle disease transfers from parents to offspring?</h3>
Sickle disease is inherited when a child receives two sickle cell genes which is one from father and the other from mother. Meiosis and fertilization can result in a trait like sickle cell being expressed in offspring when not expressed in either parent because meiosis transfers genetic characteristics from parent to offspring.
When examining a cross section of rock layers, the oldest layer is on the bottom. This is because over time, newer rock layers continued to form on top of the oldest one.