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TLS Online TPP Program

#Question id: 14753

German scientist Adolf Fick discovered that the rate of diffusion is directly proportional to the concentration gradient (∆cs /∆x)—that is, to the difference in concentration of substance s (∆cs ) between two points separated by the distance ∆x. According to Fick’s first law,

#Unit 6. System Physiology – Plant
  1. The movement of molecules by diffusion always proceeds nonspontaneous, down a gradient of concentration or chemical potential, until equilibrium is reached, movement of molecules is termed passive transport
  2. The rate of accumulation (or depletion) of concentration within the volume as proportional to the local curvature of the concentration gradient
  3. A substance will diffuse faster when the concentration gradient becomes steeper (∆cs is large) or when the diffusion coefficient is increased
  4. A cell membrane potential to standard potential and to the activities of the electroactive, relates the effective concentration
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TLS Online TPP Program

#Question id: 3361

#Unit 11. Evolution and Behavior

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: 3362

#Unit 11. Evolution and Behavior

The Hardy-Wienberg principle comes from considering what happens when Medelian genes act on population. The model predicts that there will be no change in allele frequencies when
TLS Online TPP Program

#Question id: 3363

#Unit 11. Evolution and Behavior

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

#Unit 11. Evolution and Behavior

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: 3365

#Unit 11. Evolution and Behavior

Consider a population of 10,000 individuals, of which 2500 are homozygotes (PP) and 3000 are heterozygotes (Pp) genotype. The frequency of allele p in the population is
TLS Online TPP Program

#Question id: 3366

#Unit 11. Evolution and Behavior

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?