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edancer98

  • 2 years ago

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?

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  1. edancer98
    • 2 years ago
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    My brain is crying.

  2. DrAmaQueen
    • 2 years ago
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    haha

  3. edancer98
    • 2 years ago
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    Can you help me? :)

  4. DrAmaQueen
    • 2 years ago
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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

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

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

  7. DrAmaQueen
    • 2 years ago
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    they have 23 pairs

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

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

  10. edancer98
    • 2 years ago
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    Thankyou both. :)

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

  12. DrAmaQueen
    • 2 years ago
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    anytime

  13. InYourHead
    • 2 years ago
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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??

  14. Determined
    • 2 years ago
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    Yes I am thinking what it was. A1A2 and B1B2.

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

  16. Determined
    • 2 years ago
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    If we assume A1 and A2 represent the homologous chromosomes.

  17. DrAmaQueen
    • 2 years ago
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    then meiotic division brings it down to a pair

  18. edancer98
    • 2 years ago
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    I'm surrounded by smart people.

  19. InYourHead
    • 2 years ago
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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.

  20. edancer98
    • 2 years ago
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    dats ok

  21. DrAmaQueen
    • 2 years ago
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    :P

  22. DrAmaQueen
    • 2 years ago
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    now that i look at it ...........

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

  24. Determined
    • 2 years ago
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    edancer98 do you get how to do this question?

  25. DrAmaQueen
    • 2 years ago
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    haha christ!!!

  26. DrAmaQueen
    • 2 years ago
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    sorry correction

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

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

  29. edancer98
    • 2 years ago
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    Ok think I got it. Thanks everyone. :D

  30. DrAmaQueen
    • 2 years ago
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    we made a mountain out of a mole hill

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

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

  33. Determined
    • 2 years ago
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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.

  34. Determined
    • 2 years ago
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    But the question did say combinations so yeah.

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

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

  37. edancer98
    • 2 years ago
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    Normally I love biology but this is insane.

  38. DrAmaQueen
    • 2 years ago
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    ok lets take it slow

  39. DrAmaQueen
    • 2 years ago
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    how many different combinations of chromosome

  40. edancer98
    • 2 years ago
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    Two pairs of homogous chromsomes.

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

  42. edancer98
    • 2 years ago
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    yes

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

  44. DrAmaQueen
    • 2 years ago
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    haha

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

  46. edancer98
    • 2 years ago
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    uh huh

  47. DrAmaQueen
    • 2 years ago
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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

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

  49. edancer98
    • 2 years ago
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    TAHNKYOU! What is your IQ? :O

  50. DrAmaQueen
    • 2 years ago
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    like 2 :D

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

  52. DrAmaQueen
    • 2 years ago
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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

  53. edancer98
    • 2 years ago
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    hahahaha XD I better close this question now

  54. Ammarah
    • 2 years ago
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    Hi(:

  55. Ammarah
    • 2 years ago
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    help me study:(

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

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

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

  59. Ammarah
    • 2 years ago
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    lol yeah

  60. Ammarah
    • 2 years ago
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    hey inyourhead...i dont get slide 103

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