NEET Exam > NEET Questions > An isolated population of humans with equal n...
Start Learning for Free
An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is called
- a)Blocked gene flow
- b)Founder effect
- c)Bottle neck effect
- d)Hardy-Weinberg equilibrium
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
An isolated population of humans with equal number of blue-eyed and br...
Population may sometimes be reduced to low numbers by predation, diseases, adverse period of climatic changes. Earth quakes, floods, etc. The few surviving individuals may constitute a random genetic sample of the original population. The resultant alterations and loss of genetic variability is known as bottleneck effect.
This question is part of UPSC exam. View all NEET courses
Most Upvoted Answer
An isolated population of humans with equal number of blue-eyed and br...
Explanation:
The bottleneck effect is a type of genetic drift that occurs when a population is drastically reduced in size due to some random event such as a natural disaster, disease outbreak, or human interference. The surviving individuals are not necessarily representative of the original population, and may have a different genetic makeup. This can lead to a loss of genetic diversity and an increase in the frequency of certain alleles.
In the given scenario, the earthquake caused a drastic reduction in the population size, leaving only a few brown-eyed individuals to form the next generation. As a result, the gene pool of the population was significantly altered, with a higher proportion of brown-eyed individuals and a lower proportion of blue-eyed individuals. This is an example of the bottleneck effect.
Other options explained:
Blocked gene flow: Gene flow is the movement of genes from one population to another. If gene flow is blocked, the two populations may diverge genetically over time, but this is not the case in the given scenario.
Founder effect: The founder effect is a type of genetic drift that occurs when a small group of individuals colonizes a new area and becomes isolated from the parent population. The new population may have a different genetic makeup than the parent population, but this is not the case in the given scenario as there was no new area colonized.
Hardy-Weinberg equilibrium: The Hardy-Weinberg equilibrium is a theoretical model that describes the relationship between allele and genotype frequencies in a large, randomly mating population that is not subject to any evolutionary forces. The given scenario does not fit this model as there was a significant change in the gene pool due to the earthquake.
The bottleneck effect is a type of genetic drift that occurs when a population is drastically reduced in size due to some random event such as a natural disaster, disease outbreak, or human interference. The surviving individuals are not necessarily representative of the original population, and may have a different genetic makeup. This can lead to a loss of genetic diversity and an increase in the frequency of certain alleles.
In the given scenario, the earthquake caused a drastic reduction in the population size, leaving only a few brown-eyed individuals to form the next generation. As a result, the gene pool of the population was significantly altered, with a higher proportion of brown-eyed individuals and a lower proportion of blue-eyed individuals. This is an example of the bottleneck effect.
Other options explained:
Blocked gene flow: Gene flow is the movement of genes from one population to another. If gene flow is blocked, the two populations may diverge genetically over time, but this is not the case in the given scenario.
Founder effect: The founder effect is a type of genetic drift that occurs when a small group of individuals colonizes a new area and becomes isolated from the parent population. The new population may have a different genetic makeup than the parent population, but this is not the case in the given scenario as there was no new area colonized.
Hardy-Weinberg equilibrium: The Hardy-Weinberg equilibrium is a theoretical model that describes the relationship between allele and genotype frequencies in a large, randomly mating population that is not subject to any evolutionary forces. The given scenario does not fit this model as there was a significant change in the gene pool due to the earthquake.
Community Answer
An isolated population of humans with equal number of blue-eyed and br...
The difference between founder events and population bottlenecks is the type of event that causes them. A founder event occurs when a small group of individuals is separated from the rest of the population, whereas a bottleneck effectoccurs when most of the population is destroyed.
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
|
|
Similar NEET Doubts
Top Courses for NEETView all
An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is calleda)Blocked gene flowb)Founder effectc)Bottle neck effectd)Hardy-Weinberg equilibriumCorrect answer is option 'C'. Can you explain this answer?
Question Description
An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is calleda)Blocked gene flowb)Founder effectc)Bottle neck effectd)Hardy-Weinberg equilibriumCorrect answer is option 'C'. 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 An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is calleda)Blocked gene flowb)Founder effectc)Bottle neck effectd)Hardy-Weinberg equilibriumCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is calleda)Blocked gene flowb)Founder effectc)Bottle neck effectd)Hardy-Weinberg equilibriumCorrect answer is option 'C'. Can you explain this answer?.
An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is calleda)Blocked gene flowb)Founder effectc)Bottle neck effectd)Hardy-Weinberg equilibriumCorrect answer is option 'C'. 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 An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is calleda)Blocked gene flowb)Founder effectc)Bottle neck effectd)Hardy-Weinberg equilibriumCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is calleda)Blocked gene flowb)Founder effectc)Bottle neck effectd)Hardy-Weinberg equilibriumCorrect answer is option 'C'. Can you explain this answer?.
Solutions for An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is calleda)Blocked gene flowb)Founder effectc)Bottle neck effectd)Hardy-Weinberg equilibriumCorrect answer is option 'C'. 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 An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is calleda)Blocked gene flowb)Founder effectc)Bottle neck effectd)Hardy-Weinberg equilibriumCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is calleda)Blocked gene flowb)Founder effectc)Bottle neck effectd)Hardy-Weinberg equilibriumCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is calleda)Blocked gene flowb)Founder effectc)Bottle neck effectd)Hardy-Weinberg equilibriumCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is calleda)Blocked gene flowb)Founder effectc)Bottle neck effectd)Hardy-Weinberg equilibriumCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice An isolated population of humans with equal number of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed remained to form the next generation. This kind of change in the gene pool is calleda)Blocked gene flowb)Founder effectc)Bottle neck effectd)Hardy-Weinberg equilibriumCorrect answer is option 'C'. 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
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup