A student observes a model of two bonded atoms. He is told that one atom is a metal and the other atom is a non-metal. Which of the following is a valid conclusion?

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