This protein makes the blood red in color?

More Questions:

How many Super Bowl appearances did Brett Favre lead as part of the Green Bay Packers?

Which grandmaster did Bobby Fischer defeat in 1972 and became the first American to win the world chess title?

Roger Bannister, the first athlete in History to run one mile in less than four minutes, was a native of what country?

What Italian phrase for "from the beginning" is used in music notation to indicate a repeated passage?

What is the state capital of New York?

Which US state is nicknamed the "Hawkeye State"?

In what city would you find Charles River Esplanade?

What type of plant is a Saguaro?

What is the young of a pigeon called?

What is a capon?

What is the study of space called?

What is the title object of the 2006 film "Brick" a brick of?

What historical woman has been portrayed on stage and screen by Faye Dunaway, Elaine Paige, and Madonna?

What does CSI stand for in the TV show by the same name?

Robert Leroy Parker was better known as who?