KCET · BIOLOGY · STD 12 - 6. Evolution
In a population of plants, some were extremely tall, and the remaining were extremely dwarf. No plants of the population showed intermediate height. The type of operation of natural selection in the above case is
- A disruptive
- B balancing
- C directional
- D stabilising
Answer & Solution
Correct Answer
(C) directional
Step-by-step Solution
Detailed explanation
(C) directional,
Natural selection can lead to stabilisation (in which more individuals acquire mean character value), directional change (more individuals acquire other than the mean character value) or disruption (more individuals acquire peripheral character value at both ends of the distribution curve).
Natural selection can lead to stabilisation (in which more individuals acquire mean character value), directional change (more individuals acquire other than the mean character value) or disruption (more individuals acquire peripheral character value at both ends of the distribution curve).
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