What is the value of the expression? 4 to the second power plus 3 to the 3rd power

Many farmers prefer cattle without horns because it is safer for their herds. the allele for no horns (n) is dominant to the allele for the presence of horns (n). a farmer mates a male with horns to a heterozygous female without horns. what is the chance that the offspring will have horns?

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.