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markiplier908 markiplier908
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6 years ago
The frequency of heterozygotes for cystic fibrosis shows ethnic variations.
 
  a. True
   b. False
  Indicate whether the statement is true or false
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bronsonbronson
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6 years ago
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markiplier908 Author
wrote...

6 years ago
Good timing, thanks!
wrote...

Yesterday
Just got PERFECT on my quiz
wrote...

2 hours ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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