Question

In the same Vespula necrotis a viral infection kills most of the population and reduced its size to 500.  The frequency of  the b allele in the population after the frost is (0.87). (Show your work.)

a) How many of the new population of wasps would be slashers?   _________ (2pts)

b)  What is the frequency of Bb in the population? __________  (2pt)

c. The slashers in the new population prove to be more resistant to the virus that remains in the population and their numbers in the new population continues to increase over 5 generations.

In terms of evolution, how do you explain what happened to the wasps after the virus enters the population? What is this process called? Explain (2pts)

How would you explain what happened to the population of the Vespula necrotis 5 generations after the frost? What is this process called? (3pts)

That's all the information this question provide.

Answer 1

Ans)

Frequency of b allele =q=0.87

Genotype freq of bb( slashers) =q2=(0.87)²=0.76

a) No of slasher wasp in new population =genotype freq of slasher(bb) x total population =0.76x500=380

b)

Allele frequency of B allele=p=1-q=1-0.87=0.13

Frequency of Bb =2pq=2x0.87x0.13=0.23

C)

In terms of evolution it is directonal type of natural selection in which one extreme is selected or favoured ie. Slashers(bb)

The genetic drift occur after frost in which allele freq changes in small population by chance.