Hardy Weinberg's Principle

Frequency of an allele in an isolated population may change due to :

In a large, randomly mating population, only one person in 10,000 is an albino. What will be the frequency of a carrier person of albinism?

Phenylketonuria is an autosomal recessive disorder in man. If the frequency of affected newborn infants is about 1 in 14,000, assuming random mating, what is the frequency of heterozygotes? 

Identify the type of natural selection in which more individuals acquire mean character value.

If the gene frequency occurs by chance it is termed as:

The pattern of natural selection that converts a unimodal distribution of a given phenotype into a bimodal is:

In a diploid population at Hardy-Weinberg equilibrium, consider a locus with two alleles. The frequencies of these two alleles are denoted by $\mathrm{p}$ and $\mathrm{q},$ respectively. Heterozygosity in this population is maximum at:

The bill sizes in a bird species of seed crackers from West Africa shows a bimodal distribution. Their most abundant food sources are two types of marsh plants that produce hard and soft seeds, consumed preferentially by the large and small billed birds, respectively. This bimodal distribution of bill sizes is a likely consequence of

In a population, $N_{AA}$ and $N_{aa}$ are the numbers of homozygous individuals of allele '$A$' and '$a$', respectively and $N_{Aa}$ is the number of heterozygous individuals. Which one of the following options is the allele frequency of '$A$' and '$a$' in a population with $N_{AA}=90, N_{Aa}=40$ and $N_{aa}=70?$

Assertion (A) : Geographical isolation brings about the sympatric speciation

Reason (R): If one species diverges to become two or more species, it is called cladogenesis

Study the following statements and identify the incorrect statement regarding genetic drift

In a population of 1000 individuals, 28% are homozygous dominant, 48% are heterozygous dominant, and the remaining are recessive. Find out the dominant allelic frequency.

Which of the following schematic diagram best explains showing phenotypic distribution explains the "directional selection" due to natural selection:

If a gene has four alleles, number of expected genotypes is

In Hardy Weinberg population $2 \mathrm{pq}$ represents:

Industrial melanism is an example of:

The sum total of genes present in all individuals of interbreeding or Mendelian population is called _____.

Who first explained industrial melanism in moths?