Biology Riddles

Discussion in 'Biology & Genetics' started by ElectricFetus, Nov 19, 2003.

  1. curioucity Unbelievable and odd Registered Senior Member

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    Ummm, isn't that the smaller the size and the shorter the life or an organism, the faster its reproduction processes are?
    Or are you into something I missed?
     
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  3. spuriousmonkey Banned Banned

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    The answer is unfortunately incorrect.
     
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  5. BigBlueHead Great Tealnoggin! Registered Senior Member

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    Probably by metabolizing its own body mass into egg proteins, leaving it a tiny, dry, egg-filled husk. Of course, this means that different maternal lines of fruitflies would represent different mass budgets... skinny flies would forever lay small eggs, since the maternal investment would represent more mass than the fruitfly is actually able to consume from its environment in its short lifespan.
     
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  7. spuriousmonkey Banned Banned

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    no, still no correct answer.
     
  8. spuriousmonkey Banned Banned

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    ANSWER:

    Drosophila lives for about 14 days and produces a large egg in 12 hours. This can be done because the oocyte (or egg) is entirely supplied with everything it needs by nurse cells.

    The developing eggs are located in tubes called ovarioles. Each oogonium (egg progenitor) divides 4 times and gives rise to 16 cells. These cells remain connected to each other via thin tubes called fusomes. Only one of these cells becomes the egg. The remaining 15 sister cells become nurse cells. The nurse cells amplify their genome to contain 500 -1000 copies of it. This makes it possible to have a high level of transcriptional activity.

    All the products the nurse cells produce are then moved into the egg cell.

    Also the wall of the ovarioles contain follicle cells that also contribute maternal products to the egg.

    Yolk proteins are manufactured outside the ovary in the fat body and then later transported to the egg.
     
  9. BigBlueHead Great Tealnoggin! Registered Senior Member

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    I got a riddle: where's Neuro?
     
  10. spuriousmonkey Banned Banned

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    he has eaten wellcookedfetus, but then WCF disappeared into a black hole.
     

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