NEET MCQ on Speciation Quiz Questions

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

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

2. This is the key to speciation of populations

A reproductive health B reproductive isolation C population growth D extinction

3. This can cause a steeper cline

A Extensive migration B Strong selection against heterozygotes C Stabilizing selection throughout the region D All of these

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

A temporal isolation B ecological isolation C gametic isolation D behavioural isolation

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

A that are adequately large to constitute a viable reproductive group B that are adequately uniform to be recognized by observation C in experimental conditions D in nature

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

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

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

A allopatric speciation B parapatric speciation C bottleneck D sympatric

8. This is not a reproductive isolating mechanism

A ecological isolation B individual isolation C temporal isolation D behavioural isolation

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

A Peripheral speciation B Hybridization C Sympatric speciation D Both and

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

A Sympatric speciation B Parapatric speciation C Allopatric speciation D None of these