in pea plants, flowers can be purple (p) or white (p). in a field of peas you count 18 plants with white…

in pea plants, flowers can be purple (p) or white (p). in a field of peas you count 18 plants with white flowers and 142 with purple flowers. what is the value of \q\?

in pea plants, flowers can be purple (p) or white (p). in a field of peas you count 18 plants with white flowers and 142 with purple flowers. what is the value of \q\?

Answer

Explanation:

Step1: Calculate total number of plants

$18 + 142=160$

Step2: Determine frequency of recessive phenotype

The white - flowered plants have the recessive phenotype. The frequency of the recessive phenotype ($q^{2}$) is $\frac{18}{160}=0.1125$.

Step3: Calculate the frequency of the recessive allele ($q$)

$q=\sqrt{q^{2}}=\sqrt{0.1125}\approx0.34$

Answer:

0.34