Question

The Smith family is afflicted with a genetic disorder known as Pinocchio nose syndrome, which causes affected adults to grow noses in excess of five inches long. 100 members of the Smith family show up for a family reunion. Of the fifty-three women, thirty-seven have unusually large noses. Of the forty-seven men, thirty-six have an enormous nose. Based on these figures, Pinocchio nose syndrome is probably

Answer 1

A genetic condition passed down from generation to generation.

Answer 2

Answer:

dominant and not sex-linked

Explanation:

As we can see, the number of women in the Smith family who have Pinocchio's nose syndrome is very balanced with the number of men in the Smith family who have Pinocchio's nose syndrome. With that, we can say that this syndrome is not caused by an inheritance related to sex, otherwise we would see a greater number of men or a greater number of women who have the syndrome. An example of sex-related inheritance is baldness, since the number of bald men in a family is much greater than the number of women.

Furthermore, we can say that this syndrome is caused by a dominant inheritance. This is because the majority of individuals in the family have the syndrome. In a population the number of heterozygous individuals and dominant homozygotes is much greater than the number of recessive homozygotes.