Question

practice with pedigrees
pedigrees are good for tracking disorders within a family, like sex - linked traits. if a trait for a disorder affects more males than females in a pedigree, then the trait is likely sex - linked. if a trait that affects individuals shows up frequently in every generation, it is likely to be dominant. if it shows up infrequently it is likely a recessive trait. if a male is affected by a recessive genetic disorder, the x chromosome is the chromosome that carries the trait.
if a trait shows up infrequently in generations, what kind of trait is it likely to be?
random
recessive
dominant

Explanation:

The text states that if a trait shows up frequently in every generation, it's likely dominant, and if it shows up infrequently, it's likely a recessive trait. So based on this information, a trait that shows up infrequently in generations is likely recessive.

Answer:

recessive