In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Did you know?
Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.
Did you know?
People about to have surgery must tell their health care providers about all supplements they take.
The bithorax mutation in Drosophila
Geese are the dominant herbivores in many northern wetlands, such as this marsh at La Perous
Dominant piebald spotting
Deamination of cytosine and adenine, leading to new base pairing and mutation
Mutation in Drosophila melanogaster
Increased Cancer Risk with BRCA1 or BRCA2 Mutation