Journal of Basic and Clinical Reproductive Sciences
Embryology, the study of the formation and development of an embryo and fetus. Embryology is that the branch of biology that studies the prenatal development of gametes (sex cells), fertilization, and development of embryos and fetuses. Additionally, embryology encompasses the study of congenital disorders that occur before birth, referred to as teratology. Early embryology was proposed by Malpighi, and referred to as preformations, the idea that organisms develop from pre-existing miniature versions of them. Then Aristotle proposed the idea that's now accepted, epigenesist. Embryology may be a branch of science that's associated with the formation, growth, and development of embryo. It deals with the prenatal stage of development beginning from formation of gametes, fertilization, formation of zygote, development of embryo and fetus to the birth of a replacement individual. Two basic processes involved are growth and differentiation. These cause formation of varied tissues and organs in body specialized to perform specific functions. Other characteristics of hematopoietic neoplasms differentiate tumor genesis in these cells from tumor genesis in epithelial cells. Leukemia’s tend to develop from committed stem cells or progenitor cells that have substantial replicative capacity
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