TLS Online TPP Program

#Question id: 4658


Members of two different species possess a similar-looking structure that they use in a similar fashion to perform the same function. Which information would best help distinguish between an explanation based on homology versus one based on convergent evolution?

#Section 2: Evolution
  1. The two species live at great distance from each other.

  2. The two species share many proteins in common, and the nucleotide sequences that code for these proteins are almost identical.

  3. The sizes of the structures in adult members of both species are similar in size.

  4. Both species are well adapted to their particular environments.

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TLS Online TPP Program

#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?

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?