Could Your Dopplegänger Actually Be Related to You?
SciShow・2 minutes read
The Scishow Quiz Show featured guests Joe Hansen and Hank Green competing for Patreon patrons with a chance to win prizes like autograph cards and a trip to Hawaii, discussing topics like animal mimicry and twin studies. A rare case of semi-identical twins born from one egg fertilized by two sperm cells in 2019 revealed unique genetic makeup, with the twins sharing 100% of their mother's DNA and 78% of their father's due to the rare fertilization event.
Insights
- Animals like the Cenarius Mourner bird and the Mimic Octopus showcase fascinating mimicry abilities for survival and adaptation in their environments.
- The discovery of semi-identical twins born from a rare fertilization event involving one egg and two sperm cells challenges traditional notions of genetic inheritance, with implications for medical understanding and genetic diversity.
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Recent questions
What is the Scishow Quiz Show about?
It is a game show sponsored by Battle for Cattle.
Who are the contestants on the Scishow Quiz Show?
Joe Hansen and Hank Green.
What is the episode theme of the Scishow Quiz Show?
Mimics, twins, and doppelgangers.
What is the rare occurrence reported in 2019 regarding twins?
Semi-identical twins born from one egg fertilized by two sperm cells.
What did NASA's twin study focus on?
Monitoring genetic, immune, and physiological changes.
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Summary
00:00
"SciShow Quiz Show: Mimics and Twins"
- Scishow Quiz Show sponsored by Battle for Cattle, a synthetic vaccine game
- Hosted by Michael Aranda with guest Joe Hansen from Hot Mess and It's Okay to be Smart
- Contestants: Joe Hansen vs. Hank Green, playing for Patreon patrons
- Each starts with 1,000 Scishow points, win or lose points based on correct answers
- Prizes include autograph cards, Scishow pins, and a trip to Hawaii
- Episode theme: Mimics, twins, and doppelgangers
- Mimicry in animals, like the Cenarius Mourner bird mimicking toxic caterpillars
- The Mimic Octopus imitates various creatures, including a fish for camouflage
- NASA's twin study on Scott and Mark Kelly, monitoring genetic, immune, and physiological changes
- King Gustav III's twin study to discredit coffee's health effects
- Unusual semi-identical twins born from one egg fertilized by two sperm cells, a rare occurrence reported in 2019.
15:35
Rare semi-identical twins share unique genetics.
- Genetic tests revealed that two children initially thought to be male and female actually had a mix of xx and xy cells throughout their bodies.
- The children inherited a single set of genes from their mother but received two different sets from their father.
- These semi-identical twins shared 100% of their mother's DNA and 78% of their father's due to a rare fertilization event where two sperm cells fertilized a single egg cell.
- The twins had some cells with two X chromosomes, indicating a three-way division during development.
- Researchers found only one other case of semi-identical twins in medical literature, highlighting the rarity of this type of fertilization.
