Practice Questions

TLS Online TPP Program

#Question id: 4639

If the HMS Beagle had completely bypassed the Galapagos Islands, Darwin would have had a much poorer understanding of the

#Section 2: Evolution

relative stability of a well-adapted populationʹs numbers over many generations.
ability of populations to undergo modification as they adapt to a particular environment.
tendency of organisms to produce the exact number of offspring that the environment can support.
unlimited resources that support population growth in most natural environments.

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#Question id: 3375

#Section 2: Evolution

	Evolutionary force		Caused
A	Mutation	i	Increase genetic variation within population
B	Genetic Drift	ii	Decrease genetic variation within population
C	Migration	iii	Decrease genetic variation between population
		iv	Increase genetic variation between population

Which of the following combination is correct?

#Question id: 3372

#Section 2: Evolution

Fish, penguin and Dolphin are independently evolved similar traits as a result of having to adapt to similar environments or ecological niches.

A. On a molecular level, this can happen due to random mutation in unrelated taxon to adaptive changes

B. This is the example of divergent evolution, occurred due to similar group of organisms inhabiting different environments

C. Similar phenotype are produced by identical change in orthologous gene

D. This is the example of convergent evolution, occurred due to similar group of organisms inhabiting different environments

Which of the following is the correct combination?

#Question id: 3369

#Section 2: Evolution

Genetic drift refers to random changes in allele frequencies over time leads to following consequence

a. Loss of genetic diversity per generation

b. change in allelic frequency just by chance

c. It caused adaptive evolution

d. It one allele may reach to 0 frequency

#Question id: 3368

#Section 2: Evolution

The origin of a new plant species by hybridization, coupled with accidents during nuclear division, is an example of

#Question id: 3355

#Section 2: Evolution

Speciation in ancestor as following way

A- Non-swimming populations separated by a river may gradually diverge because there is no gene flow between them

B- Plants commonly exhibit polyploidy, meaning they contain three or more sets of chromosomes

C- The tendency for two species to diverge in morphology and thus resource use because of competition

Which of the following above condition allowed to which type of speciation?

#Question id: 16771

#Section 3: Mathematics and Quantitative Ecology

What is the median?