A- What is the ratio of the genotypes in the punnet square you created? B- What is the ratio of the genotypes in the punnet square you created?

C- The pedigree shows the original parents numbered 1 and 2. They had 3 children. Compare the numbers in the ratio you determined to the appearance of the trait in the pedigree. Why were persons 11, and 12 lactose intolerant whilst persons 8, 9, and 10 were not?

Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. crinoids are an echinoderm species which uses anchoring structures called holdfasts to attach themselves to the sea floor. crinoids were most abundant in pennsylvania during the mississippian period, which ranged from 375 to 320 million years ago. fossils of the crinoids shows that during most of this time pennsylvania was that provided favorable conditions for crinoid growth. a) glacial terrain b) a dry and sandy plain c) mostly mountain ranges d) covered by warm, shallow seas