When a plant species has its dna analyzed. the results show that 28 % of its nitrogen bases are guanine. what is the percent represented by thymine

In tomato plants, mendel found that the allele for smooth seeds (s) is dominant, while the allele for wrinkled seeds (s) is recessive. which of these punnett squares shows crosses between two plants heterozygous for smooth seeds? i need this to be answered as soon as ! sry the picture is bad quality