The seeds in bush bean pods are each the product of an independent fertilization event. Green seed color is dominant to white seed color in bush beans. If a heterozygous plant with green seeds self-fertilizes, what is the probability that 6 seeds in a single pod of the progeny plant will consist of

all green seeds?

Key Concepts

Mendelian Genetics

Mendelian genetics is the study of how traits are inherited through generations based on the principles established by Gregor Mendel. It includes concepts such as dominant and recessive alleles, which determine the phenotype of an organism. In this case, green seed color is dominant over white, meaning that a plant with at least one green allele will exhibit green seeds.

Punnett Square

A Punnett square is a diagram used to predict the genotypes of offspring from a genetic cross. It helps visualize the possible combinations of alleles from the parents. For a heterozygous plant (Gg), the Punnett square would show the probabilities of producing offspring with green (GG or Gg) or white (gg) seeds, which is essential for calculating the likelihood of all seeds being green.

Binomial Probability

Binomial probability refers to the likelihood of a specific number of successes in a fixed number of independent trials, each with the same probability of success. In this scenario, the probability of obtaining all green seeds from a self-fertilizing heterozygous plant can be calculated using the binomial formula, considering the probability of green seeds and the total number of seeds in the pod.