TLS Online TPP Program

#Question id: 3316


There are two population A (N = 500) and B (N=50). Due to genetic drift, both populations will lose its genetic diversity in a generation. Such losses become magnified over many generations. After 20 generations, what will be lose its original variation?

#Section 2: Evolution
  1. Both populations will lose 20% of its original variation

  2. A population will lose 20% of its original variation, but the B population will lose 50 %.

  3. A population will lose 10% of its original variation, but the B population will lose 20%.

  4. A population will lose 2% of its original variation, but the B population will lose 20 %.

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#Question id: 3324

#Section 2: Evolution

If only 20 males and 20 female grizzlies exist today, but only 10 of the males and 6 female breed, what are effective population size?

TLS Online TPP Program

#Question id: 3325

#Section 2: Evolution

The frequency of the dominant red allele (R) in a population of diploid organisms is equal to the frequency of the recessive white allele (r). The frequency of red individuals assuming Hardy-Weinberg equilibrium is (express the frequency using decimal notation, not as a fraction or a percentage)

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#Question id: 3329

#Section 2: Evolution

The following genotypes of one locus in population are given  - Genotype ( Number)

AA (120)  AB ( 30)  BB  (50) CC  (300)

AC  (400)  BC (100)

Which of the following is the correct frequency of C allele and A allele respectively?

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#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?