Incomplete Dominance and Codominance – A Quick Tutorial

A quick tutorial on Incomplete dominance and codominance.
Video Rating: 4 / 5

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Fyrose Shaik

Fyrose Shaik is one of the Authors of HourlyBook.

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Comments ( 25 )
  1. MMTheBestest
    December 11, 2012 at 2:59 am
    Reply

    Thanks for the lesson!

  2. kendevy sayson
    December 11, 2012 at 3:34 am
    Reply

    thank you sooo much!! you’ve just expalined it well. its a really great help especially i’m having a demonstration in our class :))

  3. Yellow24y
    December 11, 2012 at 4:32 am
    Reply

    YEA!!!!AWESOME EXPLANATION

  4. Ignacio Trejo
    December 11, 2012 at 5:08 am
    Reply

    good help yes i got it now

  5. XxHorseyHodgettsxX
    December 11, 2012 at 5:51 am
    Reply

    *Down – dam auto correct!

  6. XxHorseyHodgettsxX
    December 11, 2012 at 6:14 am
    Reply

    Thanks! You really simplified it form :)

  7. collegeofcatch
    December 11, 2012 at 7:11 am
    Reply

    Excellent video! Thank you do much. Very clear.

  8. DEdens1525
    December 11, 2012 at 7:50 am
    Reply

    Very informative, I just wish you could read the writing a bit better.

  9. pisgahscience
    December 11, 2012 at 8:48 am
    Reply

    True. I did sacrifice time for quality ;) Thanks for watching all the same!

  10. larryxillest
    December 11, 2012 at 9:03 am
    Reply

    contrary to the first seconds of the video, this is most definitely Biology in 8 minutes.

  11. 3ntomology
    December 11, 2012 at 9:08 am
    Reply

    thanks, I needed a good way to differentiate incomplete and codominant alleles for my exam. The subscripts work well, thanks!

  12. pisgahscience
    December 11, 2012 at 9:58 am
    Reply

    GOOD!  Glad I could help :)

  13. koocooman
    December 11, 2012 at 10:48 am
    Reply

    Thank you so much. You cleared up ALL my questions and I’m probably going to ace the exam because of you

  14. SSJChad
    December 11, 2012 at 11:14 am
    Reply

    George Lucas?
    

  15. shana51341
    December 11, 2012 at 12:10 pm
    Reply

    This was so clear. Thank you.

  16. pisgahscience
    December 11, 2012 at 1:03 pm
    Reply

    I’m sure different teachers demonstrate this differently. The basics of the problem still work. In other words, the letters you used work just fine and you will get the same phenotypic ratio. However, the problem comes with using rr. Technically incomplete dominance both red and white are BOTH dominant and there is no recessive trait. Since we use lower case letters for recessive traits, I don’t like using them for a non-recessive trait. Make sense?

  17. fghjkl27332
    December 11, 2012 at 1:26 pm
    Reply

    aren’t you supposed to use the same letter like for red flowers RR, for white flowers rr, and for pink flowers Rr

  18. SplitSniper7
    December 11, 2012 at 2:22 pm
    Reply

    Thank you so much! This helps me understand things so much better!

  19. MLuckTV
    December 11, 2012 at 2:58 pm
    Reply

    or u could say green (50%) is 2/4. usually ur genotype will be out of four. so 2/4 is 50 percent and 1/4 is 25% and 3/4 is 75% and 4/4 is 100%. think of it like quarters ^_^

  20. 0zero0zero
    December 11, 2012 at 3:15 pm
    Reply

    thanks, rlly easy to understand.

  21. Adriana Santiago
    December 11, 2012 at 3:38 pm
    Reply

    not sure if this helped….

  22. DeiCinema
    December 11, 2012 at 3:40 pm
    Reply

    How can I pay attention to the lesson when there is a video of baby with 3 arms on the related vids?

  23. pisgahscience
    December 11, 2012 at 4:29 pm
    Reply

    It is a common mistake and LOTS of teachers actually get is backwards. For further information try: h t t p : / / w w w . emc.maricopa.edu/faculty/farabee/biobk/BioBookgeninteract.html

  24. pisgahscience
    December 11, 2012 at 5:25 pm
    Reply

    That is what is says on the screen.
    25% Blue (which is 1/4)
    50% green (which is 1/2)
    25% yellow (which is 1/4)

  25. pisgahscience
    December 11, 2012 at 6:18 pm
    Reply

    Fractions, percents, and decimals are all the same thing. .5 is 1/2 is 50%. There is no difference in any of those.

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