On this Page you will learn Ninth Class Chapter No.17 Evolution Solved Full Chapter MCQs With Solved Answers Quiz Test. If you are looking 9th Class Karachi Sindh Board Biology Chapter Wise Solved MCQs With Answers You are on this page right place. You will learn online here Objective type IX Class Biology Solved Unit 17 Most Repeated MCQs with Solved Answers Quiz Tests.
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| 9th Biology MCQs |
Q.1: Vestigial organs are?
- Well developed but non-functional
- Well developed and functional
- Reduced and functional
- Reduced and non-functional
D
Q.2: Wings of birds and wings of insects are?
- Homologous organs
- Vestigial
- Analogous organs
- None of these
C
Q.3: The experiment of cutting the tails of mice for several generations was performed by?
- Wallace
- Wesimann
- Darwin
- Lamarck
B
Q.4: The non heritable variations are?
- Discontinuous variations
- Genetic variations
- Mutation
- Environmental variation
D
Q.5: Heritable variations are not caused by?
- Crossing over
- Fertilization
- Environment
- Mutation
C
Q.6: Which one of the following is not a part of Lamarckism?
- Natural selection
- Competition for survival
- Over production
- Inheritance of acquired character
D
Q.7: According to Lamarck the organs which are used more are?
- Better developed
- Completely lost
- Less developed
- Remained same
A
Q.8: Which one of the following is not part of Darwanism?
- Inheritance of acquired character
- competition for survival
- Over production
- Natural selection
A
Q.9: Heritable variations are caused by?
- Crossing over
- Fertilization
- Environment
- Mutation
C
Q.10: The non heritable variations are?
- Discontinuous
- Genetic variation
- Mutation
- Environmental variation
D
Q.11: The experiment of cutting the tails of mice for several generations was performed by?
- Weismann
- Wallace
- Darwin
- Lamarck
A
Q.12: Wings of birds and wings of insects are?
- Analogous organs
- None of them
- Vestigal organs
- Homologous organs
A
Q.13: Vestigal organs are ?
- Well developed and functional
- Well developed but non functional
- Reduced and functional
- Reduced and non functional
D
Q.14: Lamark proposed that these characters are inherited to the offspring?
- Continuous character
- Environmental characters
- Heritable character
- Acquired characters
D
Q.15: Various breeds of dog, pigeons, sheep, hen etc made by?
- Mutation
- Homology
- Evolution
- Artificial selection
D
Q.16: The phenomenon of producing sudden changes in the genetic material is called?
- Mutation
- Over production
- Struggle for existence
- Discontinuous variation
A
Q.17: It is not a cause of variation?
- Fertilization
- Mutation
- Crossing over
- Natural selection
D
Q.18: It is not due to the environmental variations?
- Development of muscles in athletes
- The boring of Pinna or nose
- Eye or skin colour
- Loss of a part by accident
C
Q.19: It is not due to the discontinuous variations?
- Six fingers in hand or foot
- Blood group
- Tongue rolling
- Skin colour
D
Q.20: The favorable variation tends to be?
- Passed on next generation
- None of them
- Eliminated
- Remain unnoticed
A