Common Mushroom Tissue

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    • #9156
      A5HLEY
      Participant

      Hi guys, I just have a quick question.

      My question is:
      A common mushroom (that you would purchase in a grocery store) mostly consists of tissue that is:
      a) haploid
      b) diploid
      c) in the heterokaryon phase
      d) in the phylym Zygomycetes
      e) in the same phylum as angiosperms

      I was leaning towards C, but I’m not really sure…

      Thank you for your help!

    • #82194
      MrMistery
      Participant

      here’s a hint: the majority of tissue can be either haploid or diploid. So the answer is either A or B. Both can’t be wrong.

    • #82216
      Cat
      Participant

      A5HLEY, you answered correctly.

      MrMistery, you are incorrect in case of mushrooms. Technically heterokaryons are neither haploid (they have 2n/cell) nor diploid (two nuclei => not a single genome).

    • #82232
      MrMistery
      Participant

      That is true: the heterokaryon stage is a special case, if you want to call it that. I see nothing wrong with calling a keterokaryon diploid, but as the majority of books make the distinction, i accept it. However, the keterokaryon is a transient stage(pardon the word, some fungi retain this stage for many years) in the sexual reproduction of a fungus.

      The fungus body, the mycelium, is haplod. Here is a nice picture of the life cycle of a fungus. From Biology 7th edition, Campbell and Reece


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    • #82246
      Cat
      Participant

      Just to clarify: "mushroom" is the fruiting body that is produced by sexual reproduction of fungi during heterokaryon stage.

    • #82301
      MrMistery
      Participant

      I stand corrected. I didn’t read the initial question thoroughly and answered another question

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