Concept:A Punnett square is a grid used to predict the possible genotypes of offspring from a genetic cross.
Explanation:The diagram is a square divided into smaller boxes.
The alleles of one parent are written across the top.
The alleles of the other parent are written down the left side.
The inner boxes show all possible combinations of these alleles in the offspring.
This tool helps determine the probability of each genotype appearing in the next generation.
It is named after the British geneticist Reginald Punnett, who introduced this method.
Therefore, the genetic diagram illustrated is a Punnett square.
Answer:C. Punnett square
