#Question id: 3267
#Section 2: Evolution
In a typical Mendelian population, individuals carrying gene ‘a’ in homozygous condition suffer from phenylketonurea. Those with A in homozygous condition are normal. Others, who are heterozygotic with Aa, are carriers. If the frequency of ‘a’ in a population is 0.20, what is the percentage of normal individual in the population?
#Question id: 3268
#Section 2: Evolution
A population of insects is in Hardy-Weinberg equilibrium for a gene with alleles A = orange and a = yellow eyes. There are 91% orange and 9% yellow individuals in the population. If the fitness of the yellow phenotype suddenly drops to zero, what will be the allele frequency in the next generation?
#Question id: 4721
#Section 2: Evolution
PKU, results from a recessive allele; persons homozygous for this allele, if untreated, exhibit mental retardation, blue eyes, and light skin color. This character categorized as
#Question id: 3269
#Section 2: Evolution
Two plant species live in the same biome but on different continents. Although the two species are not at all closely related, they may appear quite similar as a result of
#Question id: 4723
#Section 2: Evolution
The most common cause of the pleiotropic effect of gene is due to
#Question id: 3270
#Section 2: Evolution
Heterozygote advantage should be most closely linked to which of the following?