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No, I wouldn´t.
Yes in a heartbeat.
I don't believe so.
Cloning the pet won't resurrect it so it may share the same material but they use it in different ways. People bond because of personality and characteristics. With that said I would clone my cat even though I can't because she is long gone. She was perfect and I don't think it would be futile even if they were different. I still don't know what breed my cat was but she was unique. Had long gray fur and a much longer nose than most cats. Some very different characteristics about her as well. It would have been nice to see where she came from.