Population Genetics | MCQs
ایللیس کی تعدد میں تبدیلی کیا وقت کے ساتھ ساتھ آبادی کو _______ کہا جاتا ہے؟
A. Mega-evolution
B. None of these
C. Evolution
D. Microevolution
Explanation
Microevolution refers to small-scale changes in allele frequencies within a population over time due to mutation, selection, gene flow, or genetic drift. It occurs over short generations . It is the basis for evolutionary processes. Show/Hide Explanation
جین کے بہاؤ نہ ہونے والی آبادی کو _____ کہا جاتا ہے؟
A. Sympatric
B. Isolated
C. Allopatric
D. None of these
Explanation
A population with no gene flow is considered isolated . This meaning it does not exchange genetic material with other populations. Isolation can lead to genetic divergence. It potentially resulting in speciation over time. Show/Hide Explanation
A. Mutation
B. Evolution
C. Selection
D. Genetic drift
Explanation
Genetic drift is the random fluctuation of allele frequencies in a population.
They are often due to chance events or sampling errors.
It can lead to the loss of alleles, especially in small populations, or the increase in frequency of rare alleles.
The effect of genetic drift is more pronounced in smaller populations
Random events can have a greater impact on allele frequencies.
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A. Individual
B. Gene
C. Population
D. Species
Explanation
The smallest unit that can evolve is a population.
Evolution refers to changes in the allele frequencies within a population over time
Since individual organisms cannot evolve on their own,
it's the group of individuals (the population) that experiences these changes.
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کسی لوکس پر ایللیس کی فریکوئنسی میں تبدیلی جو اتفاق سے ہوتی ہے اسے کیا کہا جاتا ہے؟
A. Speciation
B. Genetic Drift
C. Mutation
D. Non Random mating
Explanation
The change in frequency of alleles at a locus that occurs by chance is known as genetic drift.
It is a random process that can lead to significant changes in small populations over time , independent of natural selection.
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