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

For the MN-blood group system, the frequencies of M and N alleles are 0.7 and 0.3, respectively. The expected frequency of MN-blood group bearing organisms is likely to be ______. - Biology

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प्रश्न

For the MN-blood group system, the frequencies of M and N alleles are 0.7 and 0.3, respectively. The expected frequency of MN-blood group bearing organisms is likely to be ______.

पर्याय

  • 42%

  • 49%

  • 9%

  • 58%

MCQ
रिकाम्या जागा भरा
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उत्तर

For the MN-blood group system, the frequencies of M and N alleles are 0.7 and 0.3, respectively. The expected frequency of MN-blood group bearing organisms is likely to be 42%.

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पाठ 7: Evolution - MULTIPLE CHOICE QUESTIONS [पृष्ठ ४७]

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एनसीईआरटी एक्झांप्लर Biology [English] Class 12
पाठ 7 Evolution
MULTIPLE CHOICE QUESTIONS | Q 12. | पृष्ठ ४७

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

What does the following equation represent? Explain:

p2 + 2pq + q2 = 1.


State Hardy-Weinberg’s principle.


Differentiate between Directional natural selection and Disruptive natural selection. 


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?


Hardy Weinberg's principle explains ______


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


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


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?


Gene flow occurs through generations. and can occur across language barriers in humans. If we have a technique of measuring specific allele frequencies in different population of the world, can we not predict human migratory patterns in pre-history and history? Do you agree or disagree? Provide explanation to your answer.


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?


List any two factors that can disturb the genetic equilibrium.


The graphs below show three types of natural selection. The shaded areas marked with arrows show the individuals in the population who are not selected. The dotted vertical lines show the statistical means.

character
Graph A
character
Graph B
character
Graph C
  1. What names are given to the types of selection shown in graphs A, B and C?
  2. After the selection has operated for several generations in the above populations indicated as, Graph A, B and C, graphically illustrate the probable results.

Explain Hardy-Weinberg's principle


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).


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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