Hardy-Weinerg Rule - A fundamental principle in population genetics stating that the genotype frequencies and gene frequencies of a large, randomly mating population remain constant provided immigration, mutation, and selection do not take place.
Hayflick limit - (or Hayflick Phenomena) is the number of times a normal cell population will divide before it stops, presumably because the telomeres reach a critical length.
Holocene Epoch - The Holocene is a geological epoch which began approximately 12,000 years ago. According to traditional geological thinking, the Holocene continues to the present. Human civilization, in its most widely used definition, dates entirely within the Holocene.
Hominid - A hominid is any member of the biological family Hominidae (the "great apes"), including the extinct and extant humans, chimpanzees, gorillas, and orangutans.
Homo Erectus - Our first immediate ancestor, named for their completely upright, bipedal gait. Homo erectus started appearing about 2 million years ago and later gave rise to Homo sapiens, our species.
Homo Habilis - The earliest species assigned to the genus Homo dating from 2.5 to 1.8 million years ago. They are distinguished from Australopithecus species by their frequent production of shaped stone tools. Brain size was about 45% of what is typical in modern humans.
Homo Sapiens - Zoological term for man as distinguished from other animals. Man is the reasonable animal. He uses his reason to guide his choice of actions by which he attempts to improve the external conditions of his life and well-being.
Homologous structures - Body parts in different organisms that have similar bones and similar arrangements of muscles, blood vessels, and nerves and undergo similar embryological development, but do not necessarily serve the same function.
Human Genome Project - was an international scientific research project with a primary goal to determine the sequence of chemical base pairs which make up DNA and to identify and map the approximately 20,000–25,000 genes of the human genome from both a physical and functional standpoint.
Huntington’s Disease - Is a progressive brain disorder that causes uncontrolled movements, emotional problems, and loss of thinking ability (cognition).
Hybridization - The process of combining different varieties or species of organisms to create a hybrid.
Hayflick limit - (or Hayflick Phenomena) is the number of times a normal cell population will divide before it stops, presumably because the telomeres reach a critical length.
Holocene Epoch - The Holocene is a geological epoch which began approximately 12,000 years ago. According to traditional geological thinking, the Holocene continues to the present. Human civilization, in its most widely used definition, dates entirely within the Holocene.
Hominid - A hominid is any member of the biological family Hominidae (the "great apes"), including the extinct and extant humans, chimpanzees, gorillas, and orangutans.
Homo Erectus - Our first immediate ancestor, named for their completely upright, bipedal gait. Homo erectus started appearing about 2 million years ago and later gave rise to Homo sapiens, our species.
Homo Habilis - The earliest species assigned to the genus Homo dating from 2.5 to 1.8 million years ago. They are distinguished from Australopithecus species by their frequent production of shaped stone tools. Brain size was about 45% of what is typical in modern humans.
Homo Sapiens - Zoological term for man as distinguished from other animals. Man is the reasonable animal. He uses his reason to guide his choice of actions by which he attempts to improve the external conditions of his life and well-being.
Homologous structures - Body parts in different organisms that have similar bones and similar arrangements of muscles, blood vessels, and nerves and undergo similar embryological development, but do not necessarily serve the same function.
Human Genome Project - was an international scientific research project with a primary goal to determine the sequence of chemical base pairs which make up DNA and to identify and map the approximately 20,000–25,000 genes of the human genome from both a physical and functional standpoint.
Huntington’s Disease - Is a progressive brain disorder that causes uncontrolled movements, emotional problems, and loss of thinking ability (cognition).
Hybridization - The process of combining different varieties or species of organisms to create a hybrid.