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प्रश्न
Enumerate three most characteristic criteria for designating a Mendelian population.
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उत्तर
Population must be sufficiently large with potentialities for free flow of genetic material among individuals (through sexual reproduction). Migration should either be nil or negligible.
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संबंधित प्रश्न
Give the graphical representation of Hardy· Weinberg's principle in the form of Punnet Square.
State Hardy-Weinberg’s principle.
Differentiate between Directional natural selection and Disruptive natural selection.
How does the Hardy-Wienberg equation explain genetic equilibrium?
Very short answer question.
State the Hardy – Weinberg equilibrium.
(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
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?
“Migration may enhance or blurr the effects of selection”. Comment.
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?
How is Hardy-Weinberg’s expression “(p2 + 2pq + q2) = 1” derived?
At a particular locus, the frequency of allele A is 0.8, and that of allele a is 0.2. What would be the frequency of heterozygotes in a random mating population at 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 |
- What names are given to the types of selection shown in graphs A, B and C?
- 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
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 carrier fruit flies.
