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4 ore fa · May 20, 20243:30 PM PDTUpdated 2 min ago. Behind-the-scenes footage of a short film featuring a child actor has been shared on social media with the misleading suggestion that it shows the Gaza ...
2 ore fa · Down syndrome or Down's syndrome, also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. [3] It is usually associated with developmental delays, mild to moderate intellectual disability, and characteristic physical features. [1] [12] There are three types of Down syndrome, the ...
- Third copy of chromosome 21
- Mostly at conception, rarely after fertilization
1 giorno fa · The San Francisco–Oakland Bay Bridge, known locally as the Bay Bridge, is a complex of bridges spanning San Francisco Bay in California. As part of Interstate 80 and the direct road between San Francisco and Oakland, it carries about 260,000 vehicles a day on its two decks. [3] [4] It includes one of the longest bridge spans in the United ...
