Study Finds How Egg and Sperm Connect — VOA Learning English
Topics: наука й природа
Beginning
How a sperm and an egg come together has long been a mystery.
Now, new research by scientists in Austria provides interesting insight. It shows that fertilization works like a lock and key in animals that have a backbone -- from fish to people. Such animals are called vertebrates.
“We discovered this mechanism that’s really fundamental across all vertebrates as far as we can tell,” said co-author Andrea Pauli. He spoke to the Associated Press from the Research Institute of Molecular Pathology in Vienna, Austria.
The team found that three proteins in sperm join to form a sort of key that unlocks the egg. The process permits the sperm to attach to the egg.
The research findings come from studies…
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