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Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

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Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

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The longest a person has survived after a heart transplant is 24 years.

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Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

An example of X-linked inheritance An example of X-linked inheritance
Hairy ears: a phenotype proposed to be Y linked Hairy ears: a phenotype proposed to be Y linked
For linked genes, recombinant frequencies are less than 50 percent For linked genes, recombinant frequencies are less than 50 percent
Red-Green Color Blindness Is a Sex-Linked Trait in Humans Red-Green Color Blindness Is a Sex-Linked Trait in Humans
A pedigree for a Y-linked trait. These traits are transmitted from males to all male offspring in ea A pedigree for a Y-linked trait. These traits are transmitted from males to all male offspring in ea
The X-linked genetic model of Morgan’s eye-color inheritance The X-linked genetic model of Morgan’s eye-color inheritance
Video: Cardiac Cycle (Part 2 of 4)

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