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Name the law that states that the sum of allelic frequencies in a population remains constant. What are the five factors that influence these values?

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प्रश्न

Name the law that states that the sum of allelic frequencies in a population remains constant. What are the five factors that influence these values?

दीर्घउत्तर
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उत्तर

Hardy-Weinberg's principle states that the sum of allelic frequencies in a population remains constant. Five factors are known to affect Hardy-Weinberg equilibrium. These are gene migration or gene flow, genetic drift, mutation, genetic recombination and natural selection.

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अध्याय 7: Evolution - LONG ANSWER [पृष्ठ ५०]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
अध्याय 7 Evolution
LONG ANSWER | Q 1. | पृष्ठ ५०

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संबंधित प्रश्न

What does the following equation represent? Explain:

p2 + 2pq + q2 = 1.


With the help of an algebraic equation, how did Hardy-Weinberg explain that in a given population the frequency of occurrence of alleles of a gene is supposed to remain the same through generations?


State Hardy-Weinberg’s principle.


Differentiate between Directional natural selection and Disruptive natural selection. 


What is the Founder's effect?


According to the Hardy-Weinberg principle, the allele frequency of a population remains constant. How do you interpret the change of frequency of alleles in a population?


Very short answer question.

State the Hardy – Weinberg equilibrium.


A population will not exist in Hardly Weiberg equilibrium if ____________.


In the Hardy-Weinberg equilibrium equation, the homozygous mutant is represented as ______.


(p + q)2 = p2 + 2pq + q2 = 1 represents an equation used in ______. 


Disturbance of Hardy - Weinberg equilibrium results in


The factor that leads to the Founder effect in a population is ______


List any two factors that can disturb the genetic equilibrium.


Write Hardy Weinberg's equation.


Give a mathematical expression for Hardy Weinberg's principle.


A population of 200 fruit flies is in Hardy Weinberg equilibrium. The frequency of the allele (a) 0.4. Calculate the following:

Frequency of the allele (A).


A population of 200 fruit flies is in Hardy Weinberg equilibrium. The frequency of the allele (a) 0.4. Calculate the following:

The number of homozygous recessive fruit flies.


A population of 200 fruit flies is in Hardy Weinberg equilibrium. The frequency of the allele (a) 0.4. Calculate the following:

The number of carrier fruit flies.


The black colour on the beak of finches dominates over the yellow colour. There are 210 individuals with the genotype DD, 245 individuals with the genotype Dd and 45 individuals with the genotype dd. Deduce the frequency of individuals with dominant, heterozygous, and recessive traits.


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