A preschool , also known as nursery school , pre-primary school, kindergarten , or play school , is an educational establishment or learning space offering early childhood education to children before they begin compulsory education at primary school. It may be publicly or privately operated, and may be subsidized from public funds. Terminology varies by country. In some European countries the term "kindergarten" refers to formal education of children classified as ISCED level 0 — with one or several years of such education being compulsory — before children start primary school at ISCED level 1.
What is Genetics?
Place the following words into the illustration below : gametes, sporophyte, gametomphyte,
May, Joanna B. Wilson; The genetic basis of disease. Essays Biochem 3 December ; 62 5 : — Genetics plays a role, to a greater or lesser extent, in all diseases.
The Germ-Plasm: a Theory of Heredity (1893), by August Weismann
Genetics is the branch of biology concerned with the study of the DNA of organisms, how their DNA manifests as genes, and how those genes are inherited by offspring. Genes are passed to offspring in both sexual and asexual reproduction, and over time natural selection can accumulate variations amongst individuals on the group level, in the process known as evolution. Ancient peoples from around the world recognized that a child inherited their appearance and propensity for certain personality traits from their parents, though could not demonstrate the mechanism without modern knowledge of atoms, molecules, and biochemistry. During the 4 th century, BC Aristotle wrote several texts regarding the origin and history of animals, making numerous astute observations regarding the degree of relatedness between animals that would not be significantly expanded upon until the sixteenth or seventeenth centuries. He would also have purported the ancient Greek theory of the four humors, these being one of the few aspects that might be passed from parents to children.
Incest is a system of sexual involvement of two people who are closely related to each other. For an example, we can take the family in which a father is indulging in sexual activity with his daughter, moreover a brother and a sister. Society considers it is prohibited activity i. Biologically also this practice of endogamy, i. With new technology and growth in genetic technology the increase in frequency of birth defects often attributed to inbreeding which is caused directly by an increase in the frequency of homozygous alleles or genes.