TLS Online TPP Program

#Question id: 10863


According to the ____________ principle, two species with identical requirements for existence cannot coexist indefinitely

#Section 2: Evolution
  1. Numerical response
  2. Law of tolerance
  3. Adaptive radiation
  4. Competitive exclusion 
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TLS Online TPP Program

#Question id: 3361

#Section 2: Evolution

In a population 16% individual affected with autosomal recessive diseased. how many are expected to be normal phenotype if population size is 250 ?

TLS Online TPP Program

#Question id: 3363

#Section 2: Evolution

An autosomal recessive condition affects 1 newborn in 100 in a random mating population without any disruptive acting force. What is the approximate expected frequency of carriers in this population?

TLS Online TPP Program

#Question id: 3364

#Section 2: Evolution

Which of the following equations represents the corresponding equilibrium for a locus with three alleles p, q and r of diploid individuals? (P, Q and R represent the frequencies of p, q and r, respectively)

TLS Online TPP Program

#Question id: 3374

#Section 2: Evolution

Consider an autosomal locus with two alleles A1 and A2 at frequencies of 0.6 and 0.4 respectively. Each generation, A1 mutates to A2 at a rate of μ = 1 x 10-2 while A2 mutates to A1 at a rate of υ = 1 x 10-1) Assume that the population is infinitely large and no other evolutionary force is acting. The overall change in allelic frequency will be

TLS Online TPP Program

#Question id: 3366

#Section 2: Evolution

Red-Green color blindness is an X-linked recessive disorder. In a population which is in the Hardy-  Weinberg equilibrium, the incidence of occurrence of this in males is 2:2000. What will be the expected incidence of affected homozygous females?

TLS Online TPP Program

#Question id: 3371

#Section 2: Evolution

If a given gene in a randomly mating population has three alleles a, b and c in the ratio of 0.6, 0.3 and 0.1 respectively, what is the expected frequency of all heterozygote?