GENETIC DIVERSITY & NATURAL SELECTION:A-LEVEL.Help understanding directional & stabilising selection

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  • čas přidán 27. 07. 2024
  • Learn the definition of genetic diversity, evolution and the process of natural selection. I then apply this information to two graphs to demonstrate direction selection and stabilising selection.
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Komentáře • 32

  • @ethancheung114
    @ethancheung114 Před 4 měsíci +2

    When the teacher powerpoint is a slide with just the graphs --> saves my life yet again.

  • @faithpraise9883
    @faithpraise9883 Před 2 lety +27

    You make biology interesting to learn. I am soo surprise how many people don't know your channel yet

  • @Klaud_
    @Klaud_ Před 3 lety +9

    You're the Biology teacher we all need -_-

  • @nickynwalema9618
    @nickynwalema9618 Před 4 lety +6

    loved this! Thank you

  • @crazyking_sigma
    @crazyking_sigma Před 11 měsíci +2

    Hi, thanks for this video it was really helpful. I just had a question, are the curves for the selection diagrams normally distributed, so are their means=mode=median. If so in an exam question would it be acceptable to use the terms mean, median and mode interchangeably when describing the change in position or shape of the curve, due to the symmetrical nature of the normal distribution's curve?
    Thank you 👍.

  • @angelinanguyen7040
    @angelinanguyen7040 Před 3 lety +4

    Thank you so much!

  • @dinahsmandell3502
    @dinahsmandell3502 Před 3 lety +5

    thank you :)

  • @alizazulfiquar8999
    @alizazulfiquar8999 Před 2 lety +4

    Thank you so much for this video! I wanted to ask if there is any topics this links with?

  • @Rtfsilky
    @Rtfsilky Před 2 lety +2

    Thank you Miss

  • @wa4731
    @wa4731 Před 2 lety +5

    Thank you for the video! What about disruptive selection?

    • @MissEstruchBiology
      @MissEstruchBiology  Před 2 lety +1

      Hello,
      That comes up in topic 4 when speciation is taught. I have a video on that under speciation.

    • @wa4731
      @wa4731 Před 2 lety

      @@MissEstruchBiology OK, thank you. 😊

  • @joannadaniel9396
    @joannadaniel9396 Před rokem +1

    thank you

  • @uwotm8770
    @uwotm8770 Před 3 lety +4

    hi miss thank you for the video, i have a question: what is allele frequency? (how would you define it?)

    • @MissEstruchBiology
      @MissEstruchBiology  Před 3 lety +3

      Hello,
      that is the proportion of each allele within a gene pool.
      :)

    • @davidmkwizu76
      @davidmkwizu76 Před 2 lety

      I thought it was how often an allele appears in the population.

  • @jason-lg3pj
    @jason-lg3pj Před rokem

    Hi, When we say random mutations, are we talking about substitution, deletion etc? Or is it about chromosomal mutations. Could you explain that further please. Many thanks 😊 3:15

    • @MissEstruchBiology
      @MissEstruchBiology  Před rokem

      Hey, we are referring to gene mutations that result in new alleles.

  • @skyeforster2580
    @skyeforster2580 Před 2 lety +1

    Hello, Would it be possible to explain the difference between interbreeding and Inbreeding because it has got my head baffled?_

    • @EternalShadow1667
      @EternalShadow1667 Před 2 lety +1

      Inbreeding: breeding within closely genetically related individuals of the same species.
      Interbreeding: breeding between variants of the same species. I.e, a horse breeding with a donkey to produce a mule.

  • @annamahmed6502
    @annamahmed6502 Před rokem

    for the essay, is independent segregation important for this reason? genetic variation within the chromosomes leading to natural selection?

  • @Wojbest_YT
    @Wojbest_YT Před 2 měsíci

    8:20 what are we in America