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Introduction to Speciation

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Questions and Answers

What is the main factor that drives speciation?

Gene flow reduction (correct)

Natural selection

Mutation rates

Genetic drift

Which process is an example of microevolution?

Allopatric speciation

Evolution of mosquitoes resistant to DDT (correct)

Origin of mammals

Polyploidy in plants

What does the term 'macroevolution' refer to?

Speciation in geographically overlapping populations

Adaptations at species level

Evolutionary change above the species level (correct)

Evolution within a population

What is the Latin translation of 'species'?

'Kind' Signup and view all the answers

In which type of speciation do reproductive barriers form without geographic separation?

Sympatric speciation Signup and view all the answers

What is an example of a common occurrence in plants related to speciation?

Polyploidy due to cell division accidents Signup and view all the answers

What is autopolyploidy?

Individuals with more than 2 chromosome sets derived from one species Signup and view all the answers

What is allopolyploid?

Two different species interbreeding and producing hybrid offspring Signup and view all the answers

What does the Biological Species Concept refer to?

A group of populations whose members can interbreed and produce viable fertile offspring Signup and view all the answers

What is a postzygotic reproductive barrier?

Barriers that prevent the hybrid zygote from developing into viable, fertile adults Signup and view all the answers

What is gametic isolation?

Sperm of one species not fertilizing eggs of another species Signup and view all the answers

What is temporal isolation?

Species that breed at different times of the day, seasons, or years cannot mate Signup and view all the answers