WebAfter the sperm and the egg unites, the fertilized egg is called a (n) A (n) is formed when a single cell multiplies to form a hollow, fluid-filled ball with roughly 150 cells. Select one: … WebThe fertilized egg (called an embryo) implants (attaches) into the wall of your uterus. This triggers the placenta to form. Your placenta begins producing and releasing human …
Zygote Definition, Development, Example, & Facts
WebFeb 23, 2024 · When a fertilized egg has implanted in the uterus, the group of cells that will become a baby is called an embryo. A developing, fertilized egg is known by several names within the first 2 weeks after conception, including zygote, morula (day 4), and blastocyst (day 5). WebApr 10, 2024 · Two sperm celis simultaneously fertilized the egg cell. 21 was present in either the sperm or the egg cell. New answers Rating 3 @gary V Down syndrome, the most common genetic condition in the United States, is also called trisomy 21. This means a person with Down syndrome has three copies of chromosome 21 instead of two copies. crofton guest house weymouth
Prenatal Development Lifespan Development - Lumen Learning
WebSep 4, 2024 · A gamete produced by a female is called an egg, and the process that produces a mature egg is called oogenesis. Just one egg is produced from the four haploid cells that result from meiosis. The single egg is a very large cell, as you can see from the human egg also shown in Figure 7.5. 5. Spermatogenesis WebDec 4, 2024 · An ectopic pregnancy occurs when a fertilized egg implants and grows outside the main cavity of the uterus. An ectopic pregnancy most often occurs in a fallopian tube, which carries eggs from the ovaries to the uterus. This type of ectopic pregnancy is called a tubal pregnancy. WebMar 5, 2024 · As more cell divisions occur, a fluid-filled cavity forms inside the ball of cells. At this stage, the ball of cells is called a blastocyst. The cells of the blastocyst form an inner cell mass and an outer cell layer, as shown in Figure below. The inner cell mass is called the embryoblast. These cells will soon develop into an embryo. The outer ... crofton health centre