Which evolutionary mechanism is most likely to lead to allopatric speciation?
Gene flow
Sympatric speciation
Geographic isolation
Polyploidy
Related Questions
Which of the following is NOT a crucial assumption of Hardy-Weinberg equilibrium?
No mutation
Random mating
No gene flow
No natural selection
Which of the following factor is most likely to decrease the genetic diversity in a population?
Genetic recombination
Mutation
Genetic drift
Stabilizing natural selection
The theory of random genetic drift was proposed by
Hardy –Weinberg
R A Fischer
Sewall Wright
Mayr
In a random mating population, frequency of disease causing allele is 80%. What would be the frequency of carrier individuals in that population.
0.16
0.32
0.64
1
Which of the following statements are wrong? I. Thomas Malthus is well known for his book on population,, II. The work of Thomas Malthus on population did not influence Darwin, III. There must be a genetic basic for getting selected and to evolve, IV. All the finches on the Galapagos islands are descended from a common ancestor. Choose the correct option
Only I
Only II
I and III
IV and III
Which is not most common mechanism of genetic variation in the population of sexually reproducing organism?
Independent assortment
Crossing over
Random fertilization
Mutation
In a species, the weight of newborn ranges from 2 to 5kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weight from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?
Directional Selection
Stabilizing Selection
Disruptive Selection
Cyclical Selection
Genetic drift operates in:
Large populations
Small isolated populations
Populations with gene flow
Panmictic populations
Random genetic drift in a population probably results from
Constant low mutation rate
Large population size
Highly genetically variable individuals
Interbreeding within this population
The phenomenon of industrial melanism demonstrates:
Mutation
Genetic drift
Artificial selection
Natural selection
