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What are the embryonic stem cells gathered from the inner cell mass of the blastocyst called?
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How do scientists extract human embryonic stem cells?
A micropipette, a device like a small needle, is inserted into the embryo, also called a blastocyst.
What is the embryonic stage in which the embryo consists of a hollow ball of cells?
the hollow ball of cells is called the Blastocyst. At which point this occurs depends on the particular species.
What is the conglomerate of cells that implants in the uterus and lays the foundation for the development of the placenta and the eventual development of the fetus?
Implantation of the 5-day old embryonic stage of cells, called the blastocyst occurs. The blastocyst eventually gives rise to gastrula, and further development of the fetus proceeds.
When the embryo reaches the uterus, it is a hollow ball of about 100 cells called a?
When an embryo (fertilized egg) reaches the uterus, it is a hollow ball of about 100 cells called a blastocyst.
What is the collection of fertilized cells that is implanted in the uterus called?
A blastocyst.
What is a structure called when the first cell multiplies into a ball like structure?
Blastocyst
What is the order of occurrence of the pre-embryonic structures?
Preembryonic forms are the zygote (fertilized egg), morula (a solid ball of cells), blastocyst (hollow ball with a single germ layer), and bilaminar embryonic disc(with two germ layers).
What is the structure called when its a ball like structure of about 100 cells?
Blastocyst.
Explain how a stem cell develops into an embryo?
Embryonic stem cells (ES cells) are stem cells derived from the inner cell mass of the blastocyst, an early-stage embryo.In other words, they do not become embryos, they are part of an embryo.
What membranes form a protective sac that surrounds an embryo?
trophoblast cells i.e the outer cells of blastocyst(1st embryonic stage in man) gives rise to amnion chorion allantois and yolk sac the 4 protective layer of embryo and inner cells called embryoblast gives rise to embryo
What is the thickened mass of cells on the blastocyst from which the baby will develop is called the?
amniotic thickening
What is self-perpetuating embryonic cells called?
for plants its meristematic/ meristem cells
