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#Question id: 5034


Which of these statements about human evolution is correct?

#11. Evolution and Behavior
  1. The ancestors of Homo sapiens were chimpanzees.

  2. Human evolution has proceeded in an orderly fashion from an ancestral anthropoid to Homo sapiens.

  3. The evolution of upright posture and enlarged brain occurred simultaneously.

  4. Different species of the genus Homo have coexisted at various times throughout hominin evolution.

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#Question id: 3280

#11. Evolution and Behavior

Small populations are threatened by the loss of genetic diversity from

a. Inbreeding

b. Genetic drift

c. Limited mating

TLS Online TPP Program

#Question id: 3281

#11. Evolution and Behavior

One population X has 750 AA, 0 Aa, and 250 aa; the other Y has 500 AA, 500 Aa, and 0 aa. After one generation of random mating, the genotype frequencies X and Y respectively if the population size remains 1,000.

TLS Online TPP Program

#Question id: 3282

#11. Evolution and Behavior

Natural selection results in different forms of plants which can survive in contaminated or uncontaminated soil. Type of natural selection is

TLS Online TPP Program

#Question id: 3284

#11. Evolution and Behavior

The fitness of three genotype are A1A1 < A1A2 = A2A2) Which of the following observation correct?

TLS Online TPP Program

#Question id: 3285

#11. Evolution and Behavior

Natural selection continually operates on each species to keep up with improvements made by competing species; each species’ environment deteriorates as its competitors evolve new adaptations. This is known as

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#Question id: 3286

#11. Evolution and Behavior

 In a human population, the gene frequencies of the alleles for the ABO system are as follows:

A = 29%                         B = 7%                                    0=64%

Assuming complete random mating and Hardy-Weinberg equilibrium,

What are the blood type A frequencies in this population?