select the correct answer.\nin a particular species of frogs, black spots are a dominant trait and their…

select the correct answer.\nin a particular species of frogs, black spots are a dominant trait and their absence is a recessive trait. in a population of frogs, 50 are homozygous for the dominant trait, 34 are heterozygous dominant, and 16 show the recessive trait. which expression is the correct way to calculate the frequency of the dominant allele?\na. $\frac{50}{100}$\nb. $\frac{84}{100}$\nc. $\frac{50}{200}$\nd. $\frac{134}{200}$\ne. $\frac{100}{200}$

select the correct answer.\nin a particular species of frogs, black spots are a dominant trait and their absence is a recessive trait. in a population of frogs, 50 are homozygous for the dominant trait, 34 are heterozygous dominant, and 16 show the recessive trait. which expression is the correct way to calculate the frequency of the dominant allele?\na. $\frac{50}{100}$\nb. $\frac{84}{100}$\nc. $\frac{50}{200}$\nd. $\frac{134}{200}$\ne. $\frac{100}{200}$

Answer

Explanation:

Step1: Calculate total number of alleles

Each frog has 2 alleles. Total number of frogs = 50 (homozygous dominant) + 34 (heterozygous dominant) + 16 (homozygous recessive)=100. So total number of alleles = 100×2 = 200.

Step2: Calculate number of dominant alleles from homozygous - dominant frogs

Homozygous - dominant frogs have 2 dominant alleles each. 50 homozygous - dominant frogs have 50×2 = 100 dominant alleles. Heterozygous - dominant frogs have 1 dominant allele each. 34 heterozygous - dominant frogs have 34 dominant alleles.

Step3: Calculate frequency of dominant allele

The frequency of the dominant allele is calculated by dividing the total number of dominant alleles by the total number of alleles in the population. The number of dominant alleles from homozygous - dominant frogs is 50×2=100, and from heterozygous - dominant frogs is 34. So the total number of dominant alleles is 100 + 34=134. The total number of alleles is 200. The frequency of the dominant allele is $\frac{134}{200}$.

Answer:

D. $\frac{134}{200}$