For the scenario in animation 11.9,what is the probability that an offspring will not have the disease?

Question

Quizplus · Accepted Answer

Both parents are carriers of the disease (heterozygous), which means they each have a 50% chance of passing on the disease-causing allele to their offspring. Therefore, the probability of an offspring inheriting the disease-causing allele from one parent is 1/2 or 0.5. The probability that an offspring will not inherit the disease-causing allele from either parent is the product of the probabilities of not inheriting the allele from each parent, which is (1/2) x (1/2) = 1/4 or 0.25. The probability of an offspring not having the disease is the square of this probability, which is (1/4)^2 = 1/16. However, we are asked for the probability of an offspring not having the disease, which is the complement of the probability of having the disease. Therefore, the probability of an offspring not having the disease is 1 - 1/16 = 15/16 or 0.9375. This is closest to C) 12/16 or 0.75.

For the Scenario in Animation 11