Amother has a blood type a and her son has a blood type o. which blood types are possible for the father?

What causes darkening of the skin as melanin production increases

Awire-hair terrier and a smooth-hair terrier are mated. the offspring produced are 6 wire-hair puppies and 2 smooth-hair puppies. a. what pattern of inheritance best describes this situation? b. what is the genotype(s) of the wire-haired puppies? of the smooth-haired puppies? c. what would be the expected genotype and phenotype ratios of a mating between 2 wire-haired terriers that are heterozygous?

Why are some places regularly warmer or cooler than others in a given month