Final answer:
A Punnett square is a chart used in genetics to determine the expected percentages of different genotypes in the offspring of two parents. It shows the different combinations of alleles that the offspring can inherit from each parent and the statistical probability of each combination.
Step-by-step explanation:
A Punnett square is a chart that allows you to determine the expected percentages of different genotypes in the offspring of two parents. It is a tool used in genetics to predict the possible outcomes of a cross or mating between two parents. The Punnett square shows the different combinations of alleles that the offspring can inherit from each parent, and the statistical probability of each combination.
For example, if both parents are heterozygous for a trait, such as flower color, the Punnett square can be used to determine the likelihood of the offspring inheriting the dominant allele or the recessive allele. Each box in the Punnett square represents a possible genotype for the offspring, with one factor coming from each parent. By analyzing the Punnett square, you can determine the expected percentages of different genotypes and phenotypes in the offspring.