Home
Class 12
BIOLOGY
Migration may enhance or blurr the effec...

Migration may enhance or blurr the effects of selection' comment.

Text Solution

Verified by Experts

Migration involves entry or exit of some members of a species into or from an area. It may cause improvement of race if there is entry if individuals with more selected genes, or may cause deterioration of race if there is entry of individuals with undesirable traits or exit of individuals with selected genes. So the migration may enhance or blurr the effects of selection.
Promotional Banner

Topper's Solved these Questions

  • EVOLUTION

    MODERN PUBLICATION|Exercise NCERT EXEMPLAR PROBLEMS (D.LONG ANSWERS TYPE QUESTION )|7 Videos

  • EVOLUTION

    MODERN PUBLICATION|Exercise HOTS (HIGHER ORDER THINKING SKILLS & BRAIN TWISTING )(VERY SHORT ANSWER QUESTIONS )(ONE MARK EACH)|12 Videos

  • EVOLUTION

    MODERN PUBLICATION|Exercise NCERT EXEMPLAR PROBLEMS (B .VERY SHORT ANSWER TYPE QUESTIONS)|15 Videos

  • ECOSYSTEM

    MODERN PUBLICATION|Exercise Chapter Practice Test (Section - D) (Case - Based Short Answer Type Questions)|5 Videos

  • HUMAN HEALTH AND DISEASES

    MODERN PUBLICATION|Exercise Chapter Practice Test|2 Videos

Similar Questions

Explore conceptually related problems

Assertion : Stomate generally open in light and close in dark. Reason : Transpiration is enhanced by heating effect of light.

While creation and presence of variation is directionless, natural selection is directional as it is in the context of adaptation. Comment.

Neurospora is useful for genetic and biochemical studies. It is a haploid organism, the effects of mutation may be seen directly.

Define thresold frequency. Is it a constant quantity for a metal surface? Comment. Define space charge. What is its effect on the emission of photoelectrons from a metal surface?

Below in each question are given two Statements A and B. These statements may be either independent causes or may be effects of independent causes or of a common cause.One of these statements may be the effect of the other statement. Read both the statements and decide which of the following answer choices correctly depicts the relationship between these two statements. A. The average day temperature of the city has increased by about 2 degrees in the current year over the average of past ten years. B. More people living in rural areas of the state have started migrating to the urban areas in comparison with the earlier year.

Below in each question are given two Statements A and B. These statements may be either independent causes or may be effects of independent causes or of a common cause. One of these statements may be the effect of the other statement. Read both the statements and decide which of the following answer choices correctly depicts the relationship between these two statements. A. The Government has decided to increase the prices of LPG cylinders with immediate effect. B. The Government has decided to increase the prices of Kerosine with immediate effect.