Suppose that in a population of 250,000 mice the mutation rate per base pair for a genetic locus is 4 × 10–8. the locus contains 1,500 base pairs. how many new mutations should we expect at this locus in each generation?

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction.