मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

What is the Founder'S Effect?

Advertisements
Advertisements

प्रश्न

What is the Founder's effect?

टीपा लिहा
Advertisements

उत्तर

Sometimes the change in allele frequency is so different in the new sample of population that they become a different species. The original drifted population becomes founder and the effect is called founder effect.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Evolution - VERY SHORT ANSWER [पृष्ठ ४९]

APPEARS IN

एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
पाठ 7 Evolution
VERY SHORT ANSWER | Q 12. | पृष्ठ ४९

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

What does the following equation represent? Explain:

p2 + 2pq + q2 = 1.


Give the graphical representation of Hardy· Weinberg's principle in the form of Punnet Square.


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?


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?


How does the Hardy-Wienberg equation explain genetic equilibrium?


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


How does Hardy-Weinberg’s expression (p2+2pq+q2=1) explain that genetic equilibrium is maintained in a population? List any four factors that can disturb the genetic equilibrium.


In a population, Hardy Weinberg equilibrium is disturbed by following factors EXCEPT ______.


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


Hardy Weinberg's principle explains ______


Hardy - Weinberg equilibrium is known to be affected by gene - flow, genetic drift, mutation, genetic recombination and


Disturbance of Hardy - Weinberg equilibrium results in


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


Which type of selection explains industrial melanism observed in moth, Biston bitularia?


In a certain population, the frequency of three genotypes is as follows:

Genotypes:  BB  Bb  bb
frequency: 22% 62%  16%

What is the likely frequency of B and b alleles?


Among the five factors that are known to affect Hardy-Weinberg equilibrium, three factors are gene flow, genetic drift and genetic recombination. What are the other two factors?


“Migration may enhance or blurr the effects of selection”. Comment.


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 dominant 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.


What is the primary statement of Hardy-Weinberg's principle?


What term describes the total collection of all genes and their alleles in a population?


What does the Hardy-Weinberg equation \[p^2 + 2pq + q^2 = 1\] represent?


What evolutionary phenomenon occurs when a small portion of a population migrates to a new location and becomes founders of a distinct population?


What does genetic drift cause in a population, particularly in new samples of a population?


What biological significance does the heterozygous genotype hold in populations at Hardy-Weinberg equilibrium?


Why are alleles present in homozygous recessive organisms exposed to environmental selection?


What does it indicate when the measured frequency of an allele differs from the expected Hardy-Weinberg value?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×