in a random mating population frequency of dominant allele is 0.7. what will be the frequency of recessive phenotype?

Question

Answer

the total frequency for an allele is 1, so it is 0.3 for the recessive allele.put the dominant frequency in place of 'a' and recessive frequency in place of 'b'.Refer to evolution ncert book. Hardy Weinberg principle.

Answer

0.09 i guess.

Answer

have u got it..? or want an explanation..?

Answer

Yes phenotype k liye hum square karte h. This actually the formula for genotype but the phenotype is also same in case of recessive.

Answer

(a+b)2 = a.a + 2a.b + b.b

Answer

Frequency of Dominant Allele in a Random Mating Population

In a random mating population, the frequency of a dominant allele is given as 0.7. This means that out of all the alleles present in the population, 70% of them are dominant alleles.

Frequency of Recessive Phenotype

To determine the frequency of the recessive phenotype, we need to consider the genotype frequencies in the population. The frequency of the recessive phenotype can be calculated using the Hardy-Weinberg equilibrium equation.

The Hardy-Weinberg equation is represented as follows:
p^2 + 2pq + q^2 = 1

Where:
- p^2 represents the frequency of the homozygous dominant genotype (AA)
- 2pq represents the frequency of the heterozygous genotype (Aa)
- q^2 represents the frequency of the homozygous recessive genotype (aa)

Calculating the Frequency of the Homozygous Dominant Genotype (AA)

The frequency of the homozygous dominant genotype (AA) can be calculated by taking the square of the frequency of the dominant allele. In this case, the frequency of the dominant allele is given as 0.7. Thus, the frequency of the homozygous dominant genotype is:

p^2 = (0.7)^2 = 0.49

Calculating the Frequency of the Heterozygous Genotype (Aa)

The frequency of the heterozygous genotype (Aa) can be calculated by multiplying the frequencies of the dominant and recessive alleles and then multiplying the result by 2. Since the frequency of the dominant allele is given as 0.7, the frequency of the recessive allele can be calculated as:

q = 1 - p = 1 - 0.7 = 0.3

Thus, the frequency of the heterozygous genotype is:

2pq = 2 * 0.7 * 0.3 = 0.42

Calculating the Frequency of the Homozygous Recessive Genotype (aa)

The frequency of the homozygous recessive genotype (aa) can be calculated by taking the square of the frequency of the recessive allele. In this case, the frequency of the recessive allele is 0.3. Thus, the frequency of the homozygous recessive genotype is:

q^2 = (0.3)^2 = 0.09

Calculating the Frequency of the Recessive Phenotype

The frequency of the recessive phenotype can be obtained by adding the frequencies of the homozygous recessive genotype and the heterozygous genotype:

Frequency of recessive phenotype = q^2 + 2pq = 0.09 + 0.42 = 0.51

Therefore, the frequency of the recessive phenotype in the random mating population with a dominant allele frequency of 0.7 is 0.51, or 51%.

Answer

is it 0.09???

Similar NEET Doubts

Allele frequency for a dominant allele is 0.2. what will be the number of dead organisms out of a population of 1000 individuals due to the lethal homozygous recessive condition

A gene locus has two alleles A,a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?

In a random mating population frequency of recessive phenotype is 0.09. what is the frequency of heterozygous genotype?

In a population that is in Hardy Weinberg equilibrium the frequency of a recessive allele for a certain hereditary trait is 0.30. what percentage of individual in next generation would be expected to show the dominant trait?

A population consists of 9% white sheep and 91% black sheep. What is the frequency of black wool allele if the black-wool allele is dominant and the white-wool allele is recessive?(

Top Courses for NEETView all

Biology Class 11

Daily Test for NEET Preparation

NEET Mock Test Series 2025

Topic-wise MCQ Tests for NEET

Physics Class 11

Top Courses for NEET

Top Courses for NEET

Suggested Free Tests

Related Content

About NEET

NEET Preparation Material

How to Prepare for NEET Exam?

NCERT Based Study Material

NEET Mock Tests

Other Popular Exams

Company