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nucleic acid

(Encyclopedia) CE5 Replication of strands of DNA CE5 nucleic acid, any of a group of organic substances found in the chromosomes of living cells and viruses that play a central role in the…

Olivia Newton-John

singer, actressBorn: 9/26/1948Birthplace: Cambridge, England Born in England and reared in Australia, singer Olivia Newton-John scored with numerous country-tinged pop hits during the 1970s and…

DK Human Body: Disease

WHAT ARE BACTERIA AND VIRUSES? WHAT ARE GENETIC DISEASES? WHY DO SOME PEOPLE SUFFER FROM ALLERGIES? WHAT IS CANCER? MEDICINEFIND OUT MOREAnything that damages the body or how it works can be called…

genetic testing

(Encyclopedia) genetic testing, medical screening for genetic disorders, by examining either a person's DNA directly or a person's biochemistry or chromosomes for indirect evidence. Testing may be…

amyotrophic lateral sclerosis

(Encyclopedia) amyotrophic lateral sclerosis (ALS)amyotrophic lateral sclerosisāˌmīətrōfˈik, sklĭrōˈsĭs [key] or motor neuron disease, sometimes called Lou Gehrig's disease, degenerative disease that…

Green, Hetty

(Encyclopedia) Green, Hetty, 1835–1916, American financier, b. Henrietta Howland Robinson, New Bedford, Mass. She inherited a large fortune from her father and invested it so shrewdly that she was…

Clare, John

(Encyclopedia) Clare, John, 1793–1864, English poet. A romantic poet who wrote shortly after the vogue for such verse, he had a profound and singular gift for capturing nature in exquisitely specific…

The Supreme Court: Getting the Word Out

Getting the Word OutThe Supreme CourtElecting Our LeadersElection Machinery That WorksRemapping DistrictsPaying for CampaignsGetting the Word OutSwitching Parties Another key controversy…

cholera

(Encyclopedia) choleracholerakŏlˈərə [key] or Asiatic cholera, acute infectious disease caused by strains of the bacterium Vibrio cholerae that have been infected by bacteriophages. The bacteria,…