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What is true about the isolated small tribal populations?
[2008]
- a)There is a decline in population as boys marry girls only from their own tribe
- b)Hereditary diseases like colour blindness do not spread in the isolated population
- c)Wrestlers who develop strong body muscles in their life time pass this character on to their progeny
- d)There is no change in population size as they have a large gene pool
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
What is true about the isolated small tribal populations?[2008]a)There...
There is a decline in population as boys marry girls only from their own tribe in the isolated small tribal populations.
This question is part of UPSC exam. View all NEET courses
Most Upvoted Answer
What is true about the isolated small tribal populations?[2008]a)There...
The small tribal population will have the small gene pool. Hereditary diseases like colourblindness will spread in isolated population due to inbreeding. There is a decline in population as boys marry girls only from their own tribe, this is due to the absence of gene migration or gene flow.
Community Answer
What is true about the isolated small tribal populations?[2008]a)There...
Certainly! Let's delve into the dynamics of isolated small tribal populations.
Population Dynamics in Isolated Tribes
Isolated small tribal populations often experience unique demographic trends due to their limited social interactions and genetic diversity. The correct answer, option 'A', highlights a significant trend in these populations.
Reasons for Decline in Population
- Endogamy: In many isolated tribes, individuals typically marry within their own group. This practice, known as endogamy, restricts genetic mixing with outsiders.
- Limited Genetic Diversity: When marriage occurs solely within the tribe, it can lead to a lack of genetic diversity. This can increase the risk of hereditary diseases and reduce the overall fitness of the population.
- Population Growth Constraints: The social structure often limits the number of potential partners, which can lead to fewer offspring. As boys and girls marry only within their tribe, the potential for expanding family trees narrows, leading to a decline in population.
Implications of Isolated Populations
- Health Risks: The concentration of genetic traits can result in a higher prevalence of hereditary diseases, which further impacts population size.
- Demographic Stagnation: With limited new genetic material, the population may stagnate rather than grow, leading to eventual decline as the birth rate may not keep pace with mortality rates.
In summary, the practice of marrying exclusively within the tribe leads to a decrease in genetic diversity and an increase in hereditary health issues, culminating in a decline in population size. Understanding these dynamics is crucial for the conservation and health of isolated tribal communities.
Population Dynamics in Isolated Tribes
Isolated small tribal populations often experience unique demographic trends due to their limited social interactions and genetic diversity. The correct answer, option 'A', highlights a significant trend in these populations.
Reasons for Decline in Population
- Endogamy: In many isolated tribes, individuals typically marry within their own group. This practice, known as endogamy, restricts genetic mixing with outsiders.
- Limited Genetic Diversity: When marriage occurs solely within the tribe, it can lead to a lack of genetic diversity. This can increase the risk of hereditary diseases and reduce the overall fitness of the population.
- Population Growth Constraints: The social structure often limits the number of potential partners, which can lead to fewer offspring. As boys and girls marry only within their tribe, the potential for expanding family trees narrows, leading to a decline in population.
Implications of Isolated Populations
- Health Risks: The concentration of genetic traits can result in a higher prevalence of hereditary diseases, which further impacts population size.
- Demographic Stagnation: With limited new genetic material, the population may stagnate rather than grow, leading to eventual decline as the birth rate may not keep pace with mortality rates.
In summary, the practice of marrying exclusively within the tribe leads to a decrease in genetic diversity and an increase in hereditary health issues, culminating in a decline in population size. Understanding these dynamics is crucial for the conservation and health of isolated tribal communities.
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What is true about the isolated small tribal populations?[2008]a)There is a decline in population as boys marry girls only from their own tribeb)Hereditary diseases like colour blindness do not spread in the isolated populationc)Wrestlers who develop strong body muscles in their life time pass this character on to their progenyd)There is no change in population size as they have a large gene poolCorrect answer is option 'A'. Can you explain this answer?
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What is true about the isolated small tribal populations?[2008]a)There is a decline in population as boys marry girls only from their own tribeb)Hereditary diseases like colour blindness do not spread in the isolated populationc)Wrestlers who develop strong body muscles in their life time pass this character on to their progenyd)There is no change in population size as they have a large gene poolCorrect answer is option 'A'. 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 What is true about the isolated small tribal populations?[2008]a)There is a decline in population as boys marry girls only from their own tribeb)Hereditary diseases like colour blindness do not spread in the isolated populationc)Wrestlers who develop strong body muscles in their life time pass this character on to their progenyd)There is no change in population size as they have a large gene poolCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is true about the isolated small tribal populations?[2008]a)There is a decline in population as boys marry girls only from their own tribeb)Hereditary diseases like colour blindness do not spread in the isolated populationc)Wrestlers who develop strong body muscles in their life time pass this character on to their progenyd)There is no change in population size as they have a large gene poolCorrect answer is option 'A'. Can you explain this answer?.
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