TLS Online TPP Program

#Question id: 9207


Loss of biodiversity matters not only with regard to mammals or other vertebrates, but also microbes. Why are microbes worthy of discovery and protection from extinction?

#Section 5: Applied Ecology & Evolution
  1. Microbes play a role in digestion.
  2. Microbes may produce unique proteins useful in genetic research.
  3. Microbes are much greater in species number than any other taxa on Earth.
  4. Microbes may be the most sensitive to the next large extinction event.
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TLS Online TPP Program

#Question id: 3284

#Section 2: Evolution

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

TLS Online TPP Program

#Question id: 3285

#Section 2: Evolution

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

TLS Online TPP Program

#Question id: 3286

#Section 2: Evolution

 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?

TLS Online TPP Program

#Question id: 3287

#Section 2: Evolution

Which statement is not an assumption of the Hardy–Weinberg law?

a. The allelic frequencies (p and q) are equal.

b. The population is randomly mating.

c. The population is large.

d. Locus is di-allelic

TLS Online TPP Program

#Question id: 3288

#Section 2: Evolution

Migration causes changes in the allelic frequency of a population by introducing alleles from other populations. The magnitude of change due to migration depends on

TLS Online TPP Program

#Question id: 3289

#Section 2: Evolution

If, someday, an archaean cell is discovered whose SSU-rRNA sequence is more similar to that of humans than the sequence of mouse SSU-rRNA is to that of humans, the best explanation for this apparent discrepancy would be