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Did you know?
Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
Did you know?
Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
Did you know?
People about to have surgery must tell their health care providers about all supplements they take.
![Multiple-dose drug administration: drug A and drug B are administered every 12 hours; drug B reaches](https://biology-forums.com/gallery/47/medium_46687_12_12_14_7_07_22_19567430.jpeg)
![The recently discovered lleret calvaria from Kenya is the smallest H. erectus and shares many traits](https://biology-forums.com/gallery/47/medium_275510_22_02_15_5_56_54_207671331.jpeg)