Your grandmother has a rare disease for which a new genetic test has just been developed. If you are interested in a genetic test to determine whether you are affected, which of the following would you need to know to BEST interpret your test?
A)if you have one or two copies of a dominant allele
B)your father's genotype
C)the penetrance of disease in people of your genotype
D)the degree of variable expressivity if you lack a copy of the affected allele

Question

Quizplus · Accepted Answer

Penetrance is the proportion of individuals with a particular genotype who show the expected phenotype. This means knowing the penetrance will help determine the probability of developing the disease if you have a certain genotype.

Your Grandmother Has a Rare Disease for Which a New