4) Give here all answers as fractions in lowest terms
Genetics: A geneticist is studying two genes. Each gene can be either dominant or recessive. A sample of 100
individuals is categorized as follows. Write your answer as a fraction or a decimal, rounded to four decimal places.
Gene 2
Dominant Recessive
Gene 1
Dominant 57 22
Recessive 16 5
(a) What is the probability that in a randomly sampled individual, gene 1 is dominant?
2 points
(b) What is the probability that in a randomly sampled individual, gene 2 is dominant?
2 points
(c) Given that gene 1 is dominant, what is the probability that gene 2 is dominant?
4 points