a) Describe, in detail, how a genetic cross can be used toidentify the number of genes involved in major changes in body formbetween two different organisms.
b) If you found a group of similar species living on nearbyislands, describe in detail a method you could use to determinetheir exact evolutionary relationship to each other.
c) Describe, in detail, how a mutation in the intracellulardomain of MC1R could change the coat color in rock pocket fromlight to dark.
d) Besides looking for microfossils, describe another test youcould perform on rocks from 3-4 billion years ago to find evidencethat life existed at that time?