Home
Class 12
BIOLOGY
(a ) Write the Hardy-Weinberg principle....

(a ) Write the Hardy-Weinberg principle.
(b) Explain the three different ways in which natural selection can affect the frequency of a heritable trait in a population shown in the graph given below.

Text Solution

Verified by Experts

Natural selection can lead to Stabilization (more individuals acquire mean character individuals value), Directional change (more acquire a value other than the mean character character value) or Disruption (more individuals acquire peripheral character value at both ends of the distribution curve).
Promotional Banner

Similar Questions

Explore conceptually related problems

(a) State Hardy Weinberg principle. Name any two factors which affect it. (b) Draw a graph to show that natural selection leads to directional change.

Different factors affecting population density are given below . I ,B ,D and E represent :

Assertion : Hardy-Weinberg principle states that in the absence of disturbing influences, gene frequencies of large populations of sexually reproducing organisms do not change , provided that matings occur at random. Reason : The disturbing influences include mutation, gene flow genetic drift, genetic recombination and natural selection.

How can the long neck of giraffe be explained through the principle of natural selection ? How does it differ from the Lamarckian interpretation ?

According to Hardy-Weinberg principle, allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences. It makes several assumptions which were given below. i. Random Mating ii. Sexual Reproduction iii. Non-overlapping Generations iv. Occurrence of Natural Selection v. Small size of population. Identify two assumptions which do not meet for a population to reach Hardy-Weinberg Equilibrium?

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 ?

There are 10 different books in a shelf. The number of ways in which three books can be selected so that exactly two of them are consecutive is