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Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

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.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Faulty outlooping produces lambda phage containing bacterial DNA Faulty outlooping produces lambda phage containing bacterial DNA
Human immunodeficiency virus gains entry into helper T cells, uses the cell DNA to replicate, interf Human immunodeficiency virus gains entry into helper T cells, uses the cell DNA to replicate, interf
The deadly Ebola virus The deadly Ebola virus
Human immunodeficiency virus (HIV) micrograph Human immunodeficiency virus (HIV) micrograph
Metabolic pathways leading to nucleotide modifications in T-even phage–infected E. coli Metabolic pathways leading to nucleotide modifications in T-even phage–infected E. coli
Validation of the genetic code by amino acid sequence analysis of T4 phage lysozyme mutants Validation of the genetic code by amino acid sequence analysis of T4 phage lysozyme mutants
Video: Chemical Changes

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