Question: Talish Lake Is A Fictional, Isolated Lake In Northern British Columbia. The Lake Is Home To An Endangered Fish. 50 Years Ago A Rock Slide Divided Talish Lake Into Two Completely Separate Water Bodies – Northern Talish Lake (NTL) And Southern Talish Lake (STL) – See Figure Below, X Marks The Location Of The Landslide. 100 Fish Were Trapped In NTL Lake …

Question: Talish Lake Is A Fictional, Isolated Lake In Northern British Columbia. The Lake Is Home To An Endangered Fish. 50 Years Ago A Rock Slide Divided Talish Lake Into Two Completely Separate Water Bodies – Northern Talish Lake (NTL) And Southern Talish Lake (STL) – See Figure Below, X Marks The Location Of The Landslide. 100 Fish Were Trapped In NTL Lake …

Talish Lake is a fictional, isolated lake in northern BritishColumbia. The lake is home to an endangered fish. 50 years ago arock slide divided Talish lake into two completely separate waterbodies – Northern Talish Lake (NTL) and Southern Talish Lake (STL)- see figure below, X marks the location of the landslide. 100 fishwere trapped in NTL lake and 10 fish were trapped in STL lake. Atthe time of the slide, the fish in both populations carried twoalleles of the T gene (T1 and T2) in equal frequencies (0.5 and0.5). Last summer, a team of biologists returned to the two lakes.There was no change in population size, but thefrequencies of the T1 and T2 alleles were no longer the same.

In NTL – the frequency of the T1 allele was 0.35 and thefrequency of the T2 allele was 0.65 In STL – the frequency of theT1 allele was 1.00 and the frequency of the T2 allele was 0.00

What will happen to the frequencies of the T1 and T2 allele inthe two fish populations with the barrier removed? Assume no otherevolutionary mechanism is acting on the population other than themechanism referred to in question 3.2.

A. No change in allele frequencies

B. Either T1 or T2 allele will become fixed in one or bothpopulations.

C. Allele frequencies will continue to diverge from eachother.

D. Allele frequencies in the two populations will become moresimilar.