MATH PUZZLE: Can you replace...
[2511] MATH PUZZLE: Can you replace... - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 272 - The first user who solved this task is Roxana zavari
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 272
The first user who solved this task is Roxana zavari.
#brainteasers #math #riddles
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Represent Christmas


Three men die in a car accident Christmas Eve. They all find themselves at the pearly gates waiting to enter Heaven. On entering they must present something relating or associated with Christmas.
The first man searches his pocket, and finds some Mistletoe, so he is allowed in.
The second man presents a cracker, so he is also allowed in.
The third man pulls out a pair of stockings.
Confused at this last gesture, St. Peter asks, "How do these represent Christmas?"
"They're Carol's."
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First genetically engineered vaccine

In 1981, the first genetically engineered vaccine was announced: the first effective subunit vaccine for any animal or human disease using gene splicing. It was designed to prevent hoof and mouth disease (FMD). The work was done by the U.S. Dept of Agriculture scientists who by 1975 had discovered that injection of VP3 (a protein derived from a portion of the coating of FMD virus) confers immunity to the disease. In 1980, the USDA team turned to recombinant DNA technology, and collaborated with scientists from Genentech, a private company. They inserted a bioengineered plasmid containing the gene for VP3 into Escherichia coli bacteria which grew obeying orders from the guest DNA, mass-producing the VP3 proteins for the vaccine.
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