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The human blood type AB in which both the A antigen and the B antigen are found embedded in the blood cells is an example of - ANSWERSCodominance An X-linked gene is - ANSWERSa gene on the X chromosome A man and a woman are both heterozygous carriers for the recessive allele that causes cystic fibrosis. What is the probability that they will have an offspring who has cystic fibrosis? - ANSWERS25% All the offspring of a cross between a red-flowered plant and a white flowered plant have p...