Fundamentals of Genetics: Probability

The video tutorial explains the concept of probability using a coin toss example and extends it to genetics, where probability helps predict genetic cross outcomes. It introduces Punnett squares as a tool for predicting traits in offspring, using peapod color as an example. The tutorial details the possible genotypes and phenotypes resulting from a cross between heterozygous parents, emphasizing that while probability indicates possible outcomes, it does not guarantee them.

What is the probability of a coin landing on heads?

• 1 out of 3

• 1 out of 5

• 1 out of 2

• 1 out of 4

What tool is used to predict the probability of traits in offspring?

• Trait Table

• Punnett Square

• Probability Chart

• Genetic Wheel

In a hybrid cross of peapod color, which color is dominant?

• Red

• Blue

• Green

• Yellow

What is the probability that an offspring will have yellow peapods when two heterozygous parents are crossed?

• 0%

• 75%

• 50%

• 25%

How many offspring out of four will exhibit green peapods in the given genetic cross?

• One

• Two

• Four

• Three