TLS Online TPP Program

#Question id: 12287


Food chains are sometimes short because

#Section 1: Ecology
  1. Only a single species of herbivore feeds on each plant species.
  2. Local extinction of a species causes extinction of the other species in its food chain
  3. Most of the energy in a trophic level is lost as it passes to the next higher level.
  4. Predator species tend to be less diverse and less abundant than prey species.
More Questions
TLS Online TPP Program

#Question id: 3338

#Section 2: Evolution

If the expected frequency of heterozygotes in a population (based on the Hardy–Weinberg law) is 0.4, but the observed frequency is 0.2, what is the inbreeding coefficient?

TLS Online TPP Program

#Question id: 3339

#Section 2: Evolution

In a plant species, flower color locus either homozygous or heterozygous with genotype RR-red, Rr- pink and rr- white. The Proportional of pink flower in generation 0 is .50.  What is the level of remaining pink flower in a third generation of repeated selfing? 

TLS Online TPP Program

#Question id: 3341

#Section 2: Evolution

In a given population of 400 individuals, 64 percent of population is caused  cancer due to completely dominat allele B. Assuming the population is in Hardy- Weinberg equilibrium, which of the following is the expected proportion of individuals who are not expected to develop the cancer?

TLS Online TPP Program

#Question id: 3342

#Section 2: Evolution

Neutral alleles are those that do not alter fitness and average reproductive success does not differ between individuals that carry one neutral allele or the other. The frequencies of these neutral alleles may change in a population by

TLS Online TPP Program

#Question id: 3343

#Section 2: Evolution

Following genotype frequency as hardy Weinberg genetic equilibrium in figure. What is the frequency of A1 and A2 allele?

TLS Online TPP Program

#Question id: 3348

#Section 2: Evolution

What is value of inbreeding coefficient above pedigree?