Evolution: Function, Tasks, Role & Diseases

Evolution means development. Related to humans, it means the development from animal ancestors through prehumans and early humans to present-day humans. The biological name of the species is Homo sapiens. By a “species” biology understands a community of living beings that can reproduce among themselves. What is evolution? Evolution means development. In relation to humans, … Evolution: Function, Tasks, Role & Diseases

Ontogenesis: Function, Tasks, Role & Diseases

Ontogenesis is the development of an individual being and differs from phylogenesis, which is known as tribal development. The concept of ontogenesis goes back to Ernst Haeckel. In modern psychology and medicine, both ontogenetic and phylogenetic considerations play a role. What is ontogenesis? Developmental biology and also modern medicine usually consider the development of living … Ontogenesis: Function, Tasks, Role & Diseases

Chemotaxis: Function, Role & Diseases

Chemotaxis influences the direction of locomotion of cells and living organisms. Chemotaxis is based on a concentration gradient of substances, which can be represented by a substance concentration gradient. What is chemotaxis? Chemotaxis affects the direction of locomotion of cells and living organisms. The term chemotaxis refers to the influence of the locomotion of living … Chemotaxis: Function, Role & Diseases

Fetogenesis: Function, Role & Diseases

Fetogenesis refers to the biological development of the fetus. Fetogenesis directly follows embryogenesis and begins around the ninth week of pregnancy. Fetogenesis ends with birth in the ninth month of pregnancy. What is fetogenesis? Fetogenesis is the term used to describe the biological development of the fetus. Fetogenesis directly follows embryogenesis and begins around the … Fetogenesis: Function, Role & Diseases

Aneuploidy Screening: Treatment, Effects & Risks

Aneuploidy screening is used to detect numerical chromosomal aberrations in embryos created in vitro and intended for implantation. It is a cytogenetic test that can only detect numerical aberrations of specific chromosomes. Aneuploidy screening thus represents a form of preimplantation genetic diagnosis (PGD). What is aneuploidy screening? Aneuploidy screening is used only in in vitro … Aneuploidy Screening: Treatment, Effects & Risks

Vasectomy: Treatment, Effect & Risks

Vasectomy is the cutting of the vas deferens of the male with the aim of permanent infertility. The main reason for the procedure is the patient’s desire for contraception without the aid of other aids or medications. Vasectomy rarely leads to complications and is usually much less risky than female sterilization. What is vasectomy? A … Vasectomy: Treatment, Effect & Risks

Blastogenesis: Function, Tasks, Role & Diseases

Blastogenesis refers to the 16-day early development of the fertilized female egg, the zygote, to the blastocyst. During blastogenesis, the cells, which are still omnipotent at the time, divide continuously and, toward the end of the phase, undergo initial differentiation into an outer sheath of cells (trophoblast) and interior cells (embryoblast), from which the embryo … Blastogenesis: Function, Tasks, Role & Diseases

Blastulation: Function, Tasks, Role & Diseases

Blastulation is the formation of a fluid-filled ball of cells, the blastocyst or blastula (Latin for germinal vesicle) during embryonic development. The implantation of the blastocyst in the uterine mucosa marks the actual actual beginning of a pregnancy. What is blastulation? Blastulation is the formation of a fluid-filled ball of cells, the blastocyst during embryonic … Blastulation: Function, Tasks, Role & Diseases