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प्रश्न
Which type of selection explains industrial melanism observed in moth, Biston bitularia ______.
पर्याय
Stabilising
Directional
Disruptive
Artificial
उत्तर
Which type of selection explains industrial melanism observed in moth, Biston bitularia directional.
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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?
Explain how mutations, natural selection and genetic drift affect Hardy Weinberg equilibrium.
(p + q)2 = p2 + 2pq + q2 = 1 represents an equation used in ______.
How is Hardy-Weinberg's expression “(p2 + 2pq + q2) = 1” derived?
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.
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.
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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.
