Answer: Option C
Explanation:
The law of segregation states that the one allele is responsible for each trait in an individual. According to this law the allele pairs separate during the time of gamete formation and unite randomly during the fertilization.
Mendel used pea plant to prove this statement. In his experiment the allele pair segregate leaving each cell with a single allele for each trait. In case of pea plants the gene for the color of seed exists in two forms, one allele is responsible for the yellow seed color and other one is responsible for the green seed color.The yellow color allele is dominant over green.
Hence, the correct answer is option C.