QUESTION 17 For goldfish, solid orange coloring is dominant while orange with bl
ID: 183320 • Letter: Q
Question
QUESTION 17 For goldfish, solid orange coloring is dominant while orange with black spots is recessive. A total of 2500 goldfish were stocked in an outdoor pond, 2275 solid orange and 225 orange with black spots. Since the fish came from a protected, indoor, stable environment, you may assume the stocked population was in equilibrium. What are the allele and genotype frequencies in the original stocked population? (please show all work on the handout to receive credit) Allele Frequencies Dominant allele, p = Recessive allele, q = # Genotype Frequencies Dominant genotype, p Heterozygous genotype, 2pq- Recessive genotype, q2 Click SavQUESTION 18 Subencyears later the pond was drained and 2000 fish were recovered: 1280 solid orange and 720 orange with to Black spots. You can assume that the population has settled into a new equilbrium. ongenotype frequencies in the recovered population? submit Clallele Frequencies SaDoninant allele, p ArRecessive allele, q = to save i What are the allele and enotype Frequencies Dominant genotype, p Heterozygous genotype, 2pq = Recessive genotype, q 44 FT FS 4Explanation / Answer
1. Total no. of goldfish=2500
No. of solid orange goldfish=2275
No. of orange with black strips goldfish=225
The allele frequency is calculated as follows-
The dominant allele frequency is p=2275/2500=0.91
The recessive allele frequency is q=225/2500=0.09
The genotype frequency is calculated as follows-
The genotype frequency of the dominant allele is p2 =0.95
This is calculated by square root of 0.91
The genotype frequency of the recessive allele is q2 = 0.3
This is calculated by square root of 0.09
Frequency of 2pq=2x0.95x0.3=0.57
2. Total no. of goldfish=2000
No. of solid orange goldfish=1280
No. of orange with black strips goldfish=720
The allele frequency is calculated as follows-
The dominant allele frequency is p=1280/2000=0.64
The recessive allele frequency is q=720/2000=0.6
The genotype frequency is calculated as follows-
The genotype frequency of the dominant allele is p2 =0.8
This is calculated by square root of 0.64
The genotype frequency of the recessive allele is q2 = 0.6
This is calculated by square root of 0.36
Frequency of 2pq=2x0.8x0.6=0.96