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genetics
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Images & Videos
chromosome sex-linked inheritance
Study DNA's double helix structure to learn how the organic chemical determines an organism's traits
Learn how DNA thermal cycler employs polymerase chain reaction to copy DNA strands
Use the Punnett square to track dominant and recessive allele pairings that make up a trait's genotype
Why are children slightly different from their parents?
See how use of a robotic pipeline for bacterial genetics makes the work of scientists less complicated and more time-efficient at University College Cork
recombinant DNA
What is the field of immunogenomics?
Dolly the sheep; cloning
For Students
genetics summary
Quizzes
greylag. Flock of Greylag geese during their winter migration at Bosque del Apache National Refugee, New Mexico. greylag goose (Anser anser)
Biology Bonanza
DNA helix in a futuristic concept of the evolution of science and medicine.
Branches of Genetics
Illustrated strands of DNA. Deoxyribonucleic acid, biology.
Genetics Quiz
Related Questions
Read Next
DNA strand illustration art, double helix, deoxyribonucleic acid, genetics
What’s the Difference Between a Gene and an Allele?
Discover
Still from the film Deliverance, 1919. The story of Helen Keller and Anne Sullivan. View shows Keller in the cockpit/front seat of an airplane.
How Did Helen Keller Fly a Plane?
solar eclipse, sun, moon, astronomy, space
How Do You Tell the Difference Between Total, Annular, Solar, and Lunar Eclipses?
Albert Einstein in Washington, D.C. c. 1921-1923. Physicist
The Solar Eclipse That Made Albert Einstein a Science Celebrity
Artist interpretation of a Space meteoroid impact. Meteor impact. Asteroid, End of the world, danger, destruction, dinosaur extinct, Judgement Day, Planet Earth, Doomsday Predictions, comet
10 Failed Doomsday Predictions
Pluto. The Changing Faces of Pluto. Most detailed view to date of the entire surface of the dwarf planet Pluto, as constructed from multiple NASA Hubble Space Telescope photographs taken from 2002 to 2003.
10 Important Dates in Pluto History
Vietnam War. U.S. President Lyndon B. Johnson awards the Distinguished Service Cross to First Lieutenant Marty A. Hammer, during a visit to military personnel, Cam Ranh Bay, South Vietnam, October 26, 1966. President Johnson
Vietnam War Timeline
Periodical Cicada, Adult, Magicicada spp. Requires 17 years to complete development. Nymph splits its skin, and transforms into an adult. Feeds on sap of tree roots. Northern Illinois Brood. This brood is the largest emergence of cicadas anywhere
Why Do Some Cicadas Appear Only Every 17 Years?

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Videos

Study DNA's double helix structure to learn how the organic chemical determines an organism's traits
James Watson and Francis Crick revolutionized the study of genetics when they discovered...
Video: Encyclopædia Britannica, Inc.
Learn how DNA thermal cycler employs polymerase chain reaction to copy DNA strands
Specific segments of DNA are amplified (copied) in a laboratory using polymerase...
Video: Encyclopædia Britannica, Inc.
Use the Punnett square to track dominant and recessive allele pairings that make up a trait's genotype
This video uses a Punnett square to illustrate how Gregor Mendel determined the way...
Video: Encyclopædia Britannica, Inc.
Why are children slightly different from their parents?
Each offspring is a combination of its two parents, receiving some dominant traits...
Video: Encyclopædia Britannica, Inc.
See how use of a robotic pipeline for bacterial genetics makes the work of scientists less complicated and more time-efficient at University College Cork
A “robotic pipeline” used in bacterial genetics at University College Cork, Cork,...
Video: University College Cork, Ireland (A Britannica Publishing Partner)
What is the field of immunogenomics?
Learn about the immune system and the field of immunogenetics.
Video: HudsonAlpha Institute for Biotechnology (A Britannica Publishing Partner)
Learn about an Australian study on twins to investigate if the singing ability is inherited or environmentally determined
An overview of an Australian study, focused on twins, of the inheritability of singing...
Video: © University of Melbourne, Victoria, Australia (A Britannica Publishing Partner)
Know about the classification and treatment of cancers by focusing on the cells genetic pathways
Classifying and treating cancer by focusing on its genetic pathways in cells.
Video: © World Science Festival (A Britannica Publishing Partner)
How biological clocks influence daily behavior
Discussion of biological clocks, including an overview of the suprachiasmatic nucleus,...
Video: Contunico © ZDF Studios GmbH, Mainz
Hear research on how the behavior in financial risk-taking comes from genetics
A researcher looking for a genetic component in financial risk taking.
Video: Courtesy of Northwestern University (A Britannica Publishing Partner)
The science of fingerprint analysis in crime solving
Overview of fingerprinting and its use by law enforcement.
Video: Contunico © ZDF Studios GmbH, Mainz
Psychiatric disorders and the stigmas associated with them
A discussion of psychiatric (mental) disorders and the stigmas often attached to...
Video: HudsonAlpha Institute for Biotechnology (A Britannica Publishing Partner)
Learn how Austrian Catholic monk and botanist Gregor Mendel observed properties of heredity
An introduction to Austrian botanist, teacher, and Augustinian prelate Gregor Mendel's...
Video: Encyclopædia Britannica, Inc.
Advances in psychiatric research and treatment discussed
A discussion of the advances made in psychiatric research and treatment.
Video: HudsonAlpha Institute for Biotechnology (A Britannica Publishing Partner)

Images

chromosome
Strands of human chromosomes.
nadil/Pond5.com
sex-linked inheritance
Sex-linked inheritance of white eyes in Drosophila flies.
Encyclopædia Britannica, Inc.
recombinant DNA
Steps involved in the engineering of a recombinant DNA molecule.
Encyclopædia Britannica, Inc.
Dolly the sheep; cloning
Dolly the sheep was successfully cloned in 1996 by fusing the nucleus from a mammary-gland...
Encyclopædia Britannica, Inc.
Gregor Mendel
Gregor Mendel, c. 1865.
From Mendel's Principles of Heredity, by W. Bateson, 1909
Miescher, Friedrich
Friedrich Miescher.
© Dr. Ralf Dahm/University of Padua, Padua, Italy
Mendel's law of segregation
Cross of a purple-flowered and a white-flowered strain of peas. R stands...
Encyclopædia Britannica, Inc.
McClintock, Barbara
Barbara McClintock in the laboratory at Cold Spring Harbor, New York, March 26, 1947.
© American Philosophical Society Library—Barbara McClintock Papers/National Library Of Medicine
initial proposal of DNA structure
The initial proposal of the structure of DNA by James Watson and Francis Crick, which...
Encyclopædia Britannica, Inc.
polynucleotide chain of deoxyribonucleic acid (DNA)
Portion of polynucleotide chain of deoxyribonucleic acid (DNA). The inset shows the...
Encyclopædia Britannica, Inc.
Rosalind Franklin
Rosalind Franklin.
© Ann Ronan Picture Library—World History Archive/age fotostock
polymerase chain reaction
The three-step process of the polymerase chain reaction.
Encyclopædia Britannica, Inc.
DNA sequencing
A nucleotide sequence determined using DNA sequencing technologies.
© Ryan McVay—Photodisc/Getty Images
human genetics
Researchers working in laboratories can determine the genetic composition of an individual's...
© Punctum/Press and Information Office of the Federal Government of Germany
International HapMap Project
The logo of the International HapMap Project.
National Institute of Health
Punnett square diagrams are used to predict all the possible gene combinations that...
Encyclopædia Britannica, Inc.
Mendel's law of independent assortment
The example here shows a cross of peas having yellow and smooth seeds with peas having...
Encyclopædia Britannica, Inc.
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