Video narration
How can two tall pea plants produce a short offspring? Treat each parent like a coin flip: each passes one allele, one version of a trait. A monohybrid cross tracks one trait at a time-here, height. Use A for dominant tall and a for recessive short. The capitals are simply notation. If each parent is Aa, each can pass A or a. Now combine one choice from each in a Punnett square: AA, Aa, Aa, or aa. A is dominant, so AA and Aa are tall. The recessive short trait appears only in aa. That is the turn: both parents look tall because each carries a hidden a. Across many offspring, the expected pattern is three tall to one short-not a promise about every group of four. So yes: two tall parents can produce short offspring when one a comes from each parent.