Quiz  /  NEET MCQ on Speciation

  • 1. 
    What stops a new chromosome variant appearing as a unique mutation from increasing in frequency?

  • It is because polyploidy is a rare process
  • it will interbreed with majority form causing heterozygotes to be inferior
  • allopatric speciation does not necessitate reinforcement
  • all of these

  • 2. 
    This is the key to speciation of populations

  • reproductive health
  • reproductive isolation
  • population growth
  • extinction

  • 3. 
    This can cause a steeper cline

  • Extensive migration
  • Strong selection against heterozygotes
  • Stabilizing selection throughout the region
  • All of these

  • 4. 
    The reproductive isolating factor occurring when a sperm and an egg are incompatible is

  • temporal isolation
  • ecological isolation
  • gametic isolation
  • behavioural isolation

  • 5. 
    Species, the biological concept is applicable only to the breeding populations

  • that are adequately large to constitute a viable reproductive group
  • that are adequately uniform to be recognized by observation
  • in experimental conditions
  • in nature

  • 6. 
    Which of the following is included in the concept of genetic bottlenecks?

  • a loss of genetic diversity in descendent populations
  • sharing genetic material between two populations
  • extensive gene flow
  • increased ability to resist new diseases

  • 7. 
    This type of speciation enables production of hybrids between two species

  • allopatric speciation
  • parapatric speciation
  • bottleneck
  • sympatric

  • 8. 
    This is not a reproductive isolating mechanism

  • ecological isolation
  • individual isolation
  • temporal isolation
  • behavioural isolation

  • 9. 
    In this kind of speciation, evolution can be expected to be faster whilst the speciation between the speciating events

  • Peripheral speciation
  • Hybridization
  • Sympatric speciation
  • Both and

  • 10. 
    A new species emerges from this geographic range of its ancestor as per this theory of speciation

  • Sympatric speciation
  • Parapatric speciation
  • Allopatric speciation
  • None of these
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