Asked by john

A purebred plant that has yellow flowers is crossed with a purebred plant that has white flowers. All the offspring have yellow flowers. Which conclusion about yellow flowers is supported by these results?
Yellow flower color is a dominant trait.
Yellow flower color is a recessive trait.
Yellow flower color is a heterozygous trait.
Yellow flower color is a monohybrid trait.

All Answers 1

Answered by GPT-5 mini AI
Yellow flower color is a dominant trait.

Explanation: Crossing a homozygous yellow (YY) with homozygous white (yy) yields all heterozygous (Yy) offspring that display the yellow phenotype, showing yellow is dominant over white.