4. brown hair (b) is dominant to blond hair (b). if there are 168 brown haired people in a population of 200: what is the predicted frequency of heterozygotes? 0.48 what is the predicted frequency of homozygous dominant? 0.36 what is the predicted frequency of homozygous recessive? 0.16

q = √0.16 which = 0.4

q² = frequency of homozygous recessive = 0.16

p = 0.6

p² = frequency of homozygous dominant = p X p = 0.6 X 0.6 = 0.36

2pq = frequency of heterozygous dominant = 0.48

Explanation:

In this question it is shown that brown hair is dominant over blond hair.

The total population of people with both brown hair and blond hair = 200

Brown-haired = homozygous brown (BB) + heterozygous brown (Bb) = 168

Using the Hardy Weinberg equation we can calculate frequencies.

This equation is written as p² + 2pq + q² = 1

Blond hair (bb) = (Total population) 200 - 168 (Brown haired) = 32

Percent of Blond hair of total population = 16% or 0.16 which is equal to q²

q² = frequency of homozygous recessive = 0.16

q = √0.16 which = 0.4

Sum of both frequencies = 100% = p + q = 1

so p = 1 - q

p = 1 - 0.4

p = 0.6

p² = frequency of homozygous dominant = p X p = 0.6 X 0.6 = 0.36

2pq = Frequency of heterozygous brown hair

2pq = 2(0.6)(0.4) = 0.48

2pq = frequency of heterozygous dominant = 0.48

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.