Heredity | Definition & Facts | Britannica
2024年12月3日 · heredity, the sum of all biological processes by which particular characteristics are transmitted from parents to their offspring. The concept of heredity encompasses two seemingly paradoxical observations about organisms: the constancy of a species from generation to generation and the variation among individuals within a species.
Genetics | History, Biology, Timeline, & Facts | Britannica
2024年12月19日 · Genetics, study of heredity in general and of genes in particular. Genetics forms one of the central pillars of biology and overlaps with many other areas, such as agriculture, medicine, and biotechnology. Learn more about the history, biology, areas of …
Heredity - Evolution, Genetics, DNA | Britannica
2024年12月3日 · Heredity - Evolution, Genetics, DNA: Many of the techniques of evolutionary genetics can be applied to the evolution of humans. Charles Darwin created a large controversy in Victorian England by suggesting in his book The Descent of Man that humans and apes share a common ancestor.
heredity - Students | Britannica Kids | Homework Help
Heredity determines certain specific characteristics of plants and animals. Plants inherit traits that affect their physical and metabolic processes. Animals can inherit behavioral, mental, and physical traits.
Heredity - Genes, DNA, Chromosomes | Britannica
2024年12月3日 · The unraveling of the physical basis of heredity makes up one of the most fascinating chapters in the history of biology. As has been discussed, each individual in a sexually reproducing species inherits two alleles for each gene, one from each parent.
Biological determinism | Definition, Heredity, & Eugenics | Britannica
Biological determinism, the idea that most human characteristics, physical and mental, are determined at conception by hereditary factors passed from parent to offspring. Biological determinism was closely associated with the eugenics movement of …
Heredity - Mendelian Genetics, Genes, Traits | Britannica
2024年12月3日 · Heredity - Mendelian Genetics, Genes, Traits: Gregor Mendel published his work in the proceedings of the local society of naturalists in Brünn, Austria (now Brno, Czech Republic), in 1866, but none of his contemporaries appreciated its significance.
Heredity - DNA, Genes, Inheritance | Britannica
2024年12月3日 · Heredity - DNA, Genes, Inheritance: The data accumulated by scientists of the early 20th century provided compelling evidence that chromosomes are the carriers of genes. But the nature of the genes themselves remained a mystery, as did the mechanism by which they exert their influence.
Heredity - DNA Structure, Composition, Genetics | Britannica
2024年12月3日 · Heredity - DNA Structure, Composition, Genetics: The remarkable properties of the nucleic acids, which qualify these substances to serve as the carriers of genetic information, have claimed the attention of many investigators.
DNA | Definition, Discovery, Function, Bases, Facts, & Structure ...
2024年12月15日 · DNA, organic chemical of complex molecular structure found in all prokaryotic and eukaryotic cells. It codes genetic information for the transmission of inherited traits. The structure of DNA was described in 1953, leading to further understanding of DNA replication and hereditary control of cellular activities.