Answer:
1/2
Explanation:
Assuming the gene is represented by the allele G (dominant), the alternate form (recessive) of the allele will be g.
A heterozygous pea plant will have the genotype Gg. During gamete formation, Gg will split into G and g gametes.
The probaility that a gamete will contain the recessive allele for flower color is 1/2.