This Austrian monk found pairs of genes separate in a random fashion when a plant's gametes form

A hole in a boat, or information given to the press without permission

A land bridge called al Lisan separates this "corpselike" body of water into a Southern Basin & a Northern Basin

This number is represented by the Roman numeral X

Aptly describing what's on it, this 3-word nickname is used for the U.S. national flag

Surely this rings a bell: the name of this physiologist who studied the secretory activity of digestion from 1890 to 1900

It's a "g"ift from the "g"overnment to an organization; block is one type

This ocean's greatest depth, about 18,000 feet, lies at around 82 degrees north latitude

In a letter or message, an X symbolizes one of these

All 4 verses of "The Star-Spangled Banner" end with these 4 words

This Swede's original scale had water's boiling point at 0 degrees & its freezing point at 100

An envoy such as an ambassador; it can also mean anyone who's tactful & avoids outright conflict

This second-longest African river takes its name from a kingdom that once existed near its mouth

This male first name starting with "X" is also a Jesuit university in Cincinnati

Dating back to the War of 1812, this symbol is usually depicted as a bearded man wearing red, white & blue

This giant of modern physics was diagnosed with ALS as a graduate student at Cambridge

Though they weren't mounting pictures, the Founding Fathers who wrote the Constitution are known as this

The Gulf of Mannar between India & this island nation is noted for its pearl banks & the sacred chank, a gastropod mollusk

In the 1637 work "Geometrie" he introduced the use of X, Y & Z as symbols of unknown quantities

Following the death of George Washington a few days before, it was sounded on December 18, 1799

This Rome-born physicist designed the first nuclear reactor

Once there were hopes for an overall budget agreement between Obama & the GOP, the "grand" this type of deal

The Strait of Tiquina connects the northern & southern parts of this lake in the Andes

X Division at this New Mexico national lab is the USA's center for the physics of nuclear weapons

Of the genus Haliaeetus, it represents strength & courage