Question

r's in population Genotype Frequency 1. Determine the number of tongue rollers in this population. Time 1: Allelic pairs R's in population RR 500 X2 Rr 300 I 200 X 2 Total Rs and rs in the population: Total people in population: Total alleles in the population: P = freg (R) = percentage of Rs in Total Rs/total the population alleles in the pop P = free. (r) = percentage of us in Total 2s/total the population alleles in the pop 2. Complete the Punnett Square to find out what the chances are that matings within this population will produce a non-tongue rolling child? Generation 2 Egg R - Eggrs Sperm R Sperma 3.100 years has passed since the alleles for tongue rolling were first polled in this population. During that time, the tongue rolling trait became associated with witchcraft. Compete the following table to determine if there was a change in the ene frequency of this population. Is this a case of non-random mating? Time 2: Allelic pairs R's in sin population population RR 200 R 34 455 Total Rs and is in the population Total people in population Total alleles in the population: IP-osa (R)-percentage of Rs in Total Rs/rotal the population alleles in the pop P ue percentage of Total 25/ the population

Answer 1

1.

Allelic pairs rsin population R's in population 1000 300 X2 X2 300 400 100 RR 500 Rr 300 IT 200 Total Rs and rs in the population: Total people in population: Total alleles in the population: P = freg. (R) = percentage of Rs in the population P = free. (T) = percentage of rs in the population 1 300 1000 2000 Total Rs/total 10.65 alleles in the pop Total 2s/total alleles in the pop 0.35

Total people in population - RR - 500 Z Rollers. Rr-300, Total roller - 800 rr -200 Non rolors-200 1000 Total alleles in population - 9000 R's in population - 500 02 =1000 (RR) to 300 (RS) 1300 rs in population - 200x2=400 (ro) + 300 (RS) 700

Frequency of R's - 1300 = 0.65 2000 Frequency of r's - Foo = 0.35 200D

2. Complete the Punnett Square to find out what the chances are that matings within this population will produce a non-tongue rolling child? Generation 2 ERRR = Egg Sperm R IRR I Rr Sperme Rr I rr

r's in population ene frequency of this population. Is this a case of non-random mating? Time 2: Allelic pairs R's in population RR 200 X2 400 345 X2 Total Rs and is in the population Total people in population 1000 Total alleles in the population 2000 P R ) - percentage of Rss Total Rs/total the population 10.37 alleles in the pop P = ) - percentage of oss Total 2s/total the population ces in the pop 345 9 10 1955 745 0.627

This is a case non-random mating because of selective mating of non-rollers must have resulted in inrease in the frequency of non-rollers.

Time 1 Time 2 Frequency R = 0.65 Frequency R = 0.37 Frequency r = 0.35 Frequency r = 0-63

The genetic trend is way from tongue rolling. This is because the frequency of non-rollers is increases after 100 generations.