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Postzygotic Reproductive Barriers: Definition & Examples Video

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

A scientist mates two different organisms. She observes no offspring. A closer inspection reveals that the hybrid embryo does not develop properly. This is an example of _____.

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1. Which of the following statements is true?

2. A farmer mates a goat and a sheep together. However, he finds he cannot use this hybrid animal to produce any new hybrids. This is an example of _____.

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About This Quiz & Worksheet

This quiz and attached worksheet will help gauge your understanding of postzygotic barriers in speciation. Topics you will need to know in order to pass the quiz include population and organisms.

Quiz & Worksheet Goals

Use these assessment tools to measure your knowledge of:

  • Two different mated organisms that produce no offspring, with a hybrid embryo that does not develop properly
  • Why hybrid animals cannot produce new hybrids
  • Identify low hybrid viability

Skills practiced

This worksheet and quiz let you practice the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related postzygotic barriers in speciation lesson
  • Critical thinking - apply relevant concepts to examine information about postzygotic barriers in speciation in a different light
  • Interpreting information - verify that you can read information regarding hybrid animals and interpret it correctly
  • Knowledge application - use your knowledge to answer questions about low hybrid viability

Additional Learning

To learn more about postzygotic barriers in speciation, review the lesson Speciation lll: Postzygotic Barriers which covers the following objectives:

  • Define postzygotic reproductive barrier
  • Define hybrid zygote abnormality
  • Hybrid infertility
  • Low hybrid viability
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