Forum:Gemini Summon

Just want to make sure for Gemini Summon ~ when a Gemini monster is special summoned by the card effect (e.g. Swing of Memories / Silent Doom), will the card's effect get negated when the Gemini monster "Normal summon" again? Therefore, the Gemini monster will not destroyed after end phase (by the effect of Swing of Memories) / the Gemini monster can declare attack or turn back to attack position from defense position (Silent Doom), right? Thank you!