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edancer98

Really need help now please. :( A diploid cell has two pairs of homologous chromosomes. How many different combinations of chromosomes could there be in the gametes?

  • one year ago
  • one year ago

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  1. edancer98
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    My brain is crying.

    • one year ago
  2. DrAmaQueen
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    haha

    • one year ago
  3. edancer98
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    Can you help me? :)

    • one year ago
  4. DrAmaQueen
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    but the chromosomes do not have to be identical e.g in men, there are two sex gametes, paired together X and Y gamete

    • one year ago
  5. InYourHead
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    @DrAmaQueen Do you mean to say that human gametes have 23 chromosomes?

    • one year ago
  6. DrAmaQueen
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    or rather i would say that each chromosome in the pair is a gamete

    • one year ago
  7. DrAmaQueen
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    they have 23 pairs

    • one year ago
  8. InYourHead
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    Body cells have 23 pairs of chromosomes. That's 46 in all.

    • one year ago
  9. DrAmaQueen
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    yeah, 44 autosomes and 2 sex chromosomes

    • one year ago
  10. edancer98
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    Thankyou both. :)

    • one year ago
  11. DrAmaQueen
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    works the same for animals, don't know about plants don't do botany lol

    • one year ago
  12. DrAmaQueen
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    anytime

    • one year ago
  13. InYourHead
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    That's right, in humans. 44 autosomes, 2 sex chromosomes. And you know that human gametes have half that number? ~~~~~~~~ I read the question. It says....a diploid cell has two pairs of homologous chromosomes. 2 pairs of homologous chromosomes.... as in FOUR chromosomes in all?? Like a spider mite??

    • one year ago
  14. Determined
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    Yes I am thinking what it was. A1A2 and B1B2.

    • one year ago
  15. DrAmaQueen
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    yeah 2 pairs means four in all

    • one year ago
  16. Determined
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    If we assume A1 and A2 represent the homologous chromosomes.

    • one year ago
  17. DrAmaQueen
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    then meiotic division brings it down to a pair

    • one year ago
  18. edancer98
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    I'm surrounded by smart people.

    • one year ago
  19. InYourHead
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    lol So it really isn't talking about humans. A hypothetical question that happens to apply to spider mites. Funny. I'm sorry for misinterpreting it though.

    • one year ago
  20. edancer98
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    dats ok

    • one year ago
  21. DrAmaQueen
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    :P

    • one year ago
  22. DrAmaQueen
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    now that i look at it ...........

    • one year ago
  23. DrAmaQueen
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    in a diploid cell, there would be twice the normal number gametes

    • one year ago
  24. Determined
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    edancer98 do you get how to do this question?

    • one year ago
  25. DrAmaQueen
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    haha christ!!!

    • one year ago
  26. DrAmaQueen
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    sorry correction

    • one year ago
  27. edancer98
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    I did then it got complicated with too many answers so I'm thinking. :/ Gonna scroll up.

    • one year ago
  28. DrAmaQueen
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    the 23 pairs of chromosome in a haploid cell make a single gamete

    • one year ago
  29. edancer98
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    Ok think I got it. Thanks everyone. :D

    • one year ago
  30. DrAmaQueen
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    we made a mountain out of a mole hill

    • one year ago
  31. edancer98
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    haha yup. I'll probably post another question later. xP I'll close this one.

    • one year ago
  32. Determined
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    Ok then, as you have got it I'll leave this here for reference.

    • one year ago
  33. Determined
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    Two pairs of homologous chromosomes: Let's call them A1 A2 and B1 B2. A1 could pair with B1 or B2 in the gametes - this means there are two combinations. A2 could pair with B1 or B2. That's another two. Therefore, there are four overall combinations. I guess recombination could give rise to more differences.

    • one year ago
  34. Determined
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    But the question did say combinations so yeah.

    • one year ago
  35. DrAmaQueen
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    the question is confusing, am not even sure what they are asking for, could you rephrase it?

    • one year ago
  36. edancer98
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    I can't that was the whole question. :(

    • one year ago
  37. edancer98
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    Normally I love biology but this is insane.

    • one year ago
  38. DrAmaQueen
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    ok lets take it slow

    • one year ago
  39. DrAmaQueen
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    how many different combinations of chromosome

    • one year ago
  40. edancer98
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    Two pairs of homogous chromsomes.

    • one year ago
  41. DrAmaQueen
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    in the gamete, the chromosome would be paired in fours(2 pairs)

    • one year ago
  42. edancer98
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    yes

    • one year ago
  43. edancer98
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    lol this only took 30 minutes for me to get it xP

    • one year ago
  44. DrAmaQueen
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    haha

    • one year ago
  45. DrAmaQueen
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    homologous means that the 2 chromosomes in a pair would have the same genetic material

    • one year ago
  46. edancer98
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    uh huh

    • one year ago
  47. DrAmaQueen
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    in a haploid cell, there are 22 homologous pairs, cause the last pair which is the sex chromosome pair is not homologous

    • one year ago
  48. DrAmaQueen
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    so in a diploid cell, i would assume there are 44 homologous pairs

    • one year ago
  49. edancer98
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    TAHNKYOU! What is your IQ? :O

    • one year ago
  50. DrAmaQueen
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    like 2 :D

    • one year ago
  51. edancer98
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    lol it's clearly higher than mine since I just typed thankyou wrong

    • one year ago
  52. DrAmaQueen
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    roflmfao it took a great deal of time to be sure of what they were even asking for, if i took that long in exam i would be sent to study agriculture

    • one year ago
  53. edancer98
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    hahahaha XD I better close this question now

    • one year ago
  54. Ammarah
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    Hi(:

    • one year ago
  55. Ammarah
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    help me study:(

    • one year ago
  56. DrAmaQueen
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    ok, i will study for 2

    • one year ago
  57. Ammarah
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    what ever girlll or should i say grill! lol im so stressed right now.....

    • one year ago
  58. InYourHead
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    So stressed we can't even read powerpoints right anymore.

    • one year ago
  59. Ammarah
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    lol yeah

    • one year ago
  60. Ammarah
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    hey inyourhead...i dont get slide 103

    • one year ago
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