NEET Exam > NEET Questions > In a population of 400 individuals, frequenc...
Start Learning for Free
In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?
- a)144
- b)192
- c)256
- d)336
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
In a population of 400 individuals, frequency of recessive allele is ...
Given:
- Total population = 400 individuals
- Frequency of recessive allele = 40%
To find:
- Total number of individuals with dominant phenotype
Solution:
1. Calculate the frequency of the dominant allele:
- The frequency of the recessive allele is given as 40%.
- Since there are only two alleles (dominant and recessive) in a population, the frequency of the dominant allele can be calculated as 100% - 40% = 60%.
2. Calculate the number of individuals with the dominant phenotype:
- The dominant phenotype can be expressed by individuals who are either homozygous dominant (DD) or heterozygous (Dd).
- Homozygous dominant individuals have two copies of the dominant allele, while heterozygous individuals have one copy of the dominant allele.
- The probability of an individual having the dominant phenotype can be calculated as the square of the frequency of the dominant allele (DD) plus twice the product of the frequencies of the dominant and recessive alleles (Dd).
- Let's denote the frequency of the dominant allele as p and the frequency of the recessive allele as q. Therefore, p = 0.60 and q = 0.40.
- The probability of an individual having the dominant phenotype (P) can be calculated as P = p^2 + 2pq.
- Substituting the values, P = (0.60)^2 + 2(0.60)(0.40) = 0.36 + 0.48 = 0.84.
3. Calculate the number of individuals with the dominant phenotype:
- To find the total number of individuals with the dominant phenotype, we multiply the probability (0.84) by the total population size (400).
- Number of individuals with the dominant phenotype = 0.84 * 400 = 336.
Therefore, the correct answer is option 'D' (336 individuals).
- Total population = 400 individuals
- Frequency of recessive allele = 40%
To find:
- Total number of individuals with dominant phenotype
Solution:
1. Calculate the frequency of the dominant allele:
- The frequency of the recessive allele is given as 40%.
- Since there are only two alleles (dominant and recessive) in a population, the frequency of the dominant allele can be calculated as 100% - 40% = 60%.
2. Calculate the number of individuals with the dominant phenotype:
- The dominant phenotype can be expressed by individuals who are either homozygous dominant (DD) or heterozygous (Dd).
- Homozygous dominant individuals have two copies of the dominant allele, while heterozygous individuals have one copy of the dominant allele.
- The probability of an individual having the dominant phenotype can be calculated as the square of the frequency of the dominant allele (DD) plus twice the product of the frequencies of the dominant and recessive alleles (Dd).
- Let's denote the frequency of the dominant allele as p and the frequency of the recessive allele as q. Therefore, p = 0.60 and q = 0.40.
- The probability of an individual having the dominant phenotype (P) can be calculated as P = p^2 + 2pq.
- Substituting the values, P = (0.60)^2 + 2(0.60)(0.40) = 0.36 + 0.48 = 0.84.
3. Calculate the number of individuals with the dominant phenotype:
- To find the total number of individuals with the dominant phenotype, we multiply the probability (0.84) by the total population size (400).
- Number of individuals with the dominant phenotype = 0.84 * 400 = 336.
Therefore, the correct answer is option 'D' (336 individuals).
Free Test
FREE
| Start Free Test |
Community Answer
In a population of 400 individuals, frequency of recessive allele is ...
Population size = 400
q = 40% = 0.4 = Recessive allele frequency
So p = 1 - q = 0.6 = dominant allele frequency
Individuals with dominant phenotype
= p2 + 2 pq
= (0.6)2 + (2) x (0.6) x (0.4)
= 0.36 + 0.48 = 0.84
= 84% of total population
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Top Courses for NEETView all
In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?a)144b)192c)256d)336Correct answer is option 'D'. Can you explain this answer?
Question Description
In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?a)144b)192c)256d)336Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?a)144b)192c)256d)336Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?a)144b)192c)256d)336Correct answer is option 'D'. Can you explain this answer?.
In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?a)144b)192c)256d)336Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?a)144b)192c)256d)336Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?a)144b)192c)256d)336Correct answer is option 'D'. Can you explain this answer?.
Solutions for In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?a)144b)192c)256d)336Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?a)144b)192c)256d)336Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?a)144b)192c)256d)336Correct answer is option 'D'. Can you explain this answer?, a detailed solution for In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?a)144b)192c)256d)336Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?a)144b)192c)256d)336Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice In a population of 400 individuals, frequency of recessive allele is 40%. Find out which of these represents the total number of individuals with dominant phenotype?a)144b)192c)256d)336Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup