Which type of molecule do whales use for energy storage and insulation?

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

What is the best-known carbohydrate?

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?