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BS110 - Exam 2
7 mechanisms of reproductive isolation
8
Biology
Undergraduate 1
02/25/2008

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Term
7 mechanisms of reproductive isolation
Definition
  1. temporal isolation
  2. habitat isolation
  3. behavioral isolation
  4. mechanical isolation
  5. gametic isolation
  6. hybrid inviability
  7. hybrid sterility
Term
temporal isolation
Definition
mating or flowering occurs at different seasons or times of day
Term
habitat isolation
Definition
populations live in different habitats and do not meet
Term
behavioral isolation
Definition
little or no sexual attraction between males and females
Term
mechanical isolation
Definition
structural differences in genitalia or flowers prevent copulation or pollen transfer
Term
gametic isolation
Definition
female ane male gametes fail to unite in fertilization
Term
hybrid inviability
Definition
hybrid zygotes fail to develop or fail to reach sexual maturity
Term
hybrid sterility
Definition
hybrids fail to produce functional gametes
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