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The Basis of Heredity: Patterns of Inheritance

Related Article: Learn more about genetic science.

Genes control the inheritance of various traits. Dominant genes are always expressed, while recessive genes are only expressed if no dominant gene is present.

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8.5 Million Farmers Grow GM (3:33)

8.5 Million Farmers Grow Genetically Modified (GM) Crops; More Benefits to Poor Farmers Says James. ISAAA Chairman Clive James summarizes the global status of genetically modified (GM) crops -- highlighting results from 2005 as well as double-digit... More »

Reduced Plowing Good for Soil (4:02)

Reduced Plowing Good for Soil; Benefits of Con-til Rapidly Accumulating. Four experts and seven farmers discuss how biotech crops help farmers globally eliminate plowing or tilling the soil -- thereby reducing greenhouse gas emissions, erosion and... More »

GM Reduces Pesticide Application (3:15)

GM Reduces Pesticide Application; 10-Year Decrease of 172,000 Metric Tons. Since 1996, farmers have reduced pesticide applications by 172,000 metric tons as a direct result of biotech crops. Farmers from eight countries discuss benefits within their... More »

Net Income $27 Billion Greater (3:01)

Net Income $27 Billion Greater; GM Crops Improve Yields and Farm Incomes. Since 1996, farmers have increased their net incomes by $27 billion growing biotech crops. Farmers from eight countries discuss how genetically modified (GM) crops have... More »

Health and Well-Being Improves (3:17)

Health and Well-Being Improves; Genetically Modified Crops Contribute to Quality of Life. Biotech benefits contribute to the health and well-being of farm families and their communities. Two experts and farmers from eight countries discuss specific... More »

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G Word: Mangoes 101 (2:29)

In this clip from Planet Green's "G Word," Stephen Brooks gives us a taste of one of the most popular fruits in the world-- the mango.

Why? Tell Me Why!: Earth: Mass Extinction (2:59)

The Earth is in the middle of its sixth mass extinction. Kasey-Dee Gardner finds out why they happen in the first place, and how we can save our planet. Watch this video from Discovery Channel's "Why? Tell Me Why!"

Discovery News: Tech: Synthetic Biology (2:32)

Biologist J. Craig Venter helped crack the human genome. His next goal: create life. Jorge Ribas talks to him about the promise and perils of synthetic biology.

Brink: NeuroSky Headsets (4:00)

NeuroSky has figured out a way to pick up the senses of your mental state and turn them into digital information, all with the use of a single headset. Learn more in this video from the Science Channel's show, "Brink."

Meet the Flying Fox (0:38)

A flying fox may sound like a canine critter with wings, but it actually has more in common with Dracula. Find out what the flying fox is in this clip from Discovery's archives.

Why? Tell Me Why!: Spawning Death (2:52)

Some plant and animal species die after spawning offspring -- but why? Watch as Kasey-Dee Gardner learns more in this clip from Discovery's "Why? Tell Me Why!" series.

Why? Tell Me Why!: Skin Pigmentation (2:18)

What caused humans to have different skin tones? Find out in this episode of "Why? Tell Me Why!"

World Science Festival: Paul Nurse (3:13)

Watch Dr. Kiki interviews Nobel Laureate Paul Nurse, a biochemist and president of Rockefeller University in this clip from the Science Channel's "World Science Festival."

World Science Festival: Pat Churchland (4:02)

Watch as Dr. Kiki interviews neurophilosopher Pat Churchland in this excerpt from the Science Channel's "World Science Festival" series.

World Science Festival: Francis Collins (2:01)

Watch as Dr. Kiki interviews Francis Collins, director of the Human Genome Project. Check out the rest of the Science Channel's "World Science Festival" series to learn more about the future of science.