"Sickle-cell is a pretty good example , though , if you 're prepared to accept blood as a 'body part ' . I 'm not .... besides , sickle cell adds nothing benefical in the way of phenotype . We 've been over this here . Have anything else ?"
"Sickle cell trait confers malarial resistance , a phenotypic benefit . I 'm not going to go charging off finding more examples if you 're just going to stick your fingers in your ears and pretend you ca n't hear me ."
"Sickle-cell is a pretty good example , though , if you 're prepared to accept blood"
"I 'm not going to go charging off finding more examples"