AIIMS: Major Similarities in Biology

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  • Endostyle of Urochordates = Thyroid of man

  • Chloragogen cells of earthworm = liver of man

  • Companion cells of phloem = albuminous cell of conifers

  • Starch Sheath of sterm is homologous to endodermis = endodermoid

  • Megasporophyll of cycas = Carpels of angiosperms

  • Micro Megasporophyll of cycas = Stamens of angiosperms

  • Prothallial cell of pollen grain = male gametophyte

  • Mesosome of prokaryotes = mitrochondria of eukaryotes

  • Megasponangia blaring pteridophytes = Carpels of angiosperm

  • acropetal arrangement of flower = Centripetal arrangement

  • Contractile Vacuole of paramecium = uriniferous tubule

  • Endosperm of pinus = prothallus of adiantum

  • Central axis of cone = thalamus of flower

  • Muller organ of protochordate = pituitary of vertebrates

  • Labia majora = Scrotum of male

  • Clitoris = penis in male

  • Muller’s organ of amphioxus = pituitary gland of man

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