Artificial Selection (Grade 12 NSC Matric Life Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the main difference in who controls artificial selection compared to natural selection?
What is the main difference in who controls artificial selection compared to natural selection?
Humans control artificial selection
How does the rate of artificial selection compare to natural selection?
How does the rate of artificial selection compare to natural selection?
Artificial selection occurs much faster
What is the ancestral origin of all modern dog breeds?
What is the ancestral origin of all modern dog breeds?
Grey wolf (Canis familiaris)
Why are mongrel dogs generally healthier than pedigreed dogs?
Why are mongrel dogs generally healthier than pedigreed dogs?
They have much greater genetic variation
What problem do pedigreed dogs commonly face due to selective breeding?
What problem do pedigreed dogs commonly face due to selective breeding?
Reduced genetic variation
Which trait was NOT selected for in maize domestication?
Which trait was NOT selected for in maize domestication?
Multiple stems per plant
What acts as the selective force in artificial selection?
What acts as the selective force in artificial selection?
Human needs and preferences
How does artificial selection affect genetic variation compared to natural selection?
How does artificial selection affect genetic variation compared to natural selection?
Artificial selection reduces variation
What allowed humans to create hundreds of dog breeds from wolves?
What allowed humans to create hundreds of dog breeds from wolves?
High genetic variability in grey wolves
What is a consequence of reduced genetic variation in domesticated organisms?
What is a consequence of reduced genetic variation in domesticated organisms?
More vulnerable to diseases