Advertisements
Advertisements
प्रश्न
Which type of selection explains industrial melanism observed in moth, Biston bitularia?
विकल्प
Stabilising
Directional
Disruptive
Artificial
Advertisements
उत्तर
Which type of selection explains industrial melanism observed in moth, Biston bitularia directional.
Explanation:
During industrial pollution, dark-colored (melanic) moths had a selective advantage due to camouflage on soot-darkened trees, leading to an increase in their population. This directional change in phenotype frequency towards the darker form illustrates directional selection responding to environmental changes caused by industrialization.
APPEARS IN
संबंधित प्रश्न
What is the Founder's effect?
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 ______.
Hardy Weinberg's principle explains ______
Disturbance of Hardy - Weinberg equilibrium results in
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 ______.
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?
State and explain any three factors affecting allele frequency in populations.
Enumerate three most characteristic criteria for designating a Mendelian population.
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?
List any two factors that can disturb the genetic equilibrium.
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?
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:
The number of homozygous dominant 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 homozygous recessive fruit flies.
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 is the role of natural selection in affecting Hardy-Weinberg equilibrium?
What does genetic drift cause in a population, particularly in new samples of a population?
What does it indicate when the measured frequency of an allele differs from the expected Hardy-Weinberg value?
Which condition for Hardy-Weinberg equilibrium specifically eliminates random fluctuations in allele frequency?
