Aplant can produce either purple flowers or white flowers. what is the probability of purple-flowered offspring if two plants that are heterozygous for purple flowers are crossed? a. 1: 4 b. 2: 4 c. 3: 4 d. 4: 4

The answer is C. 3:4. Let allele A be dominant allele for purple flowers and allele a be recessive allele for white flowers. Heterozygotes (Aa) will have purple flowers because they have one dominant allele. In their cross: Aa x Aa, the offsprings will be: AA, Aa, Aa, aa. So, purple flowers will be AA, Aa, and Aa, which are 3 out of total 4 flowers. In other words, the probability is 3:4.

I'm soooo sorry but i can't answer but you can ask another professor