What is the phenotype ratio of the given Punnett diagram?

The correct answer is: 3:1

• Phenotype is the physical trait of an organism such as height, color, size, etc.
• The phenotype depends up on he character expressed by the genes.
• Genes can be dominant or recessive
• The phenotype is the result of dominant gene expression alone in the case of heterozygous organisms.
• The genotype of the offspring are AA, Aa, Aa and aa
• The dominant gene is present in three while recessive gene is present in only one of the offspring.
• Hence, the phenotype is 3:1