What is the role of the brain in the human body

The allele for curly hair is incompletely dominant. if a mother is homozygous for curly hair and the father is homozygous for straight hair, what percentage of the offspring will exhibit characteristics of both parents? 25 percent 50 percent 75 percent 100 percent

Which of th following best describes how genes produce traits in an organism?

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?