Twin studies and adoption studies | Behavior | MCAT | Khan Academy

แชร์
ฝัง
  • เผยแพร่เมื่อ 16 เม.ย. 2015
  • Visit us (www.khanacademy.org/science/he...) for health and medicine content or (www.khanacademy.org/test-prep/...) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video.
    Watch the next lesson: www.khanacademy.org/test-prep...
    Missed the previous lesson? www.khanacademy.org/test-prep...
    MCAT on Khan Academy: Go ahead and practice some passage-based questions!
    About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
    For free. For everyone. Forever. #YouCanLearnAnything
    Subscribe to Khan Academy’s MCAT channel: / @khanacademymcatprep
    Subscribe to Khan Academy: th-cam.com/users/subscription_...

ความคิดเห็น • 50

  • @bianka94825
    @bianka94825 4 ปีที่แล้ว +38

    OMG SHE KINDA SOUNDS LIKE ALEX FROM MODERN FAMILY😱😂

  • @stubborndreamer8056

    Stubborn dreamer was here

  • @psychvision101
    @psychvision101 3 ปีที่แล้ว +2

    Fantastic thanks!

  • @briefly9562
    @briefly9562 ปีที่แล้ว

    Thank you so much for explaining this so clearly.

  • @Bigcods
    @Bigcods 8 ปีที่แล้ว +3

    How interesting who would have thought.

  • @SkodaUFOInternational
    @SkodaUFOInternational 2 ปีที่แล้ว +4

    Pls Khan, run a normalization algorithm on the audio before you upload. I am looking at this video through my laptop, and I can't understand it, even though my speakers are on max.

  • @agent-sz2qj
    @agent-sz2qj 7 ปีที่แล้ว +1

    this video is helpful, thanks

  • @sanganisamuntanga26
    @sanganisamuntanga26 ปีที่แล้ว

    kindly help good people, to clearly understand the distinction between twin studies and adoption studies.

  • @theunknowndoodler

    same with me and my sister!

  • @viratdubey551
    @viratdubey551 4 ปีที่แล้ว +9

    Audio is not comfortable , very less sound

  • @domgia9248
    @domgia9248 2 ปีที่แล้ว +2

    Okay, but where are the studies?

  • @cerebroconcepturo5353
    @cerebroconcepturo5353 7 ปีที่แล้ว +4

    Good day! don't you think the best explanation as to why regular siblings didn't exactly have the same environment was because of the nutritional influence of their mom?

  • @ChenBoi
    @ChenBoi 7 ปีที่แล้ว +21

    Chen Boi was here

  • @pawankumarpauriyal9897
    @pawankumarpauriyal9897 4 ปีที่แล้ว +1

    Ba 3rd sem

  • @practicalnomad5918
    @practicalnomad5918 2 ปีที่แล้ว

    how is twin method different from co-twin method?

  • @rawatenator
    @rawatenator 8 ปีที่แล้ว +7

    Fraternal twins don't necessarily share 50% of genes.... Consdier the example that follows. The woman who makes the egg got 50% of her genes from her mom (e.g. the twins' maternal grandmother) and 50% of her genes from her father (twins' maternal grandfather). In the extreme case, one ova will contain 100% of genes from the maternal grandfather. the other ova will contain 100% of genes from the maternal grandfather.

  • @epeeypen

    i am raising twins and they arnt the same im sorry ... they are mono di and the way they are treated by everyone is way different.

  • @PunXYo
    @PunXYo 2 ปีที่แล้ว

    This is not very informative. I’m a semi-identical twin sister and we share 75-%-78% of each other’s DNA! Also I absorbed my third triplet sisters embryo in the whom and makes me a Chimera born with 2 sets of DNA and this can only happen with fraternal eggs!

  • @yashfeenkhan.909
    @yashfeenkhan.909 7 ปีที่แล้ว +5

    plz improve ur voice quality

  • @anastasia.2007.
    @anastasia.2007. 7 ปีที่แล้ว +10

    Identical twins DO NOT have the exact same genetics. It's an old myth from old books. They have different random somatic mutations in cells making up their bodies. Also, their epigenetics (proteins and other molecules sitting on the DNA and regulating the gene expression) are different. All of this is caused by stochastic factors from the environment.