How are salmon and lampreys different? Salmon have a jaw. Lampreys have scales. Salmon have a cartilaginous skeleton. Lampreys have a swim bladder.

The diagram shows the results when two parents are crossed. the letters represent alleles for a trait that is controlled by three different genes. which best describes this inheritance pattern? multiple allele because a trait is controlled by three different genes polygenic because the offspring have alleles from both parents multiple allele because the offspring have alleles from both parents polygenic because a trait is controlled by three different genes