Most people are interested in understanding how they were reproduced. Some people are curious to know exactly how they looked in their mother’s womb. It is very understanding to wanting to know all those types of things. What exactly happened to be able to produce who we are? In this essay, I will be explaining the basic steps to how we began to become the wonderful humans we are now. It is very good to understand this process so you can be well aware. In biology, we learn a lot about living things, which includes animals, insects, and plants. It is more interesting to understand more about ourselves and this topic is a very interesting one. We should all know that an offspring is produced through sexual reproduction. First, there are two gametes which are sex cells. The female gamete is the egg …show more content…
Once a sperm has won the race into entering the egg, the process will start to begin. Once the sperm enters the egg, the sperm and the egg nuclei will fuse together which starts the DNA and the cellular respiration process. It is important to remember that genes are made of DNA. Also, you should remember that you have 46 chromosomes in total. 23 is from the mother and 23 is from the father. “From a total of 35 spreads, 80% of the metaphases showed a stem line number of 46 chromosomes with intact X and Y chromosomes” (Grant et al., 1988, p. 248). The father is the one who determines the sex of the embryo. Once the zygote goes through fertilization, it begins going through the different processes such as cleavage, gastrulation, and the organ formation. At these stages, humans and a lot of other animals look exactly alike. It is after the gastrulation process that the parts and structures of the embryo start to begin. For example, the human embryo start to produce hands and feet and the chicken embryo start to produce its wings. Also, in this process, the organs start to form in the embryo as