Q387
The conclusions of de Vries from his experiments with Oenothera lamarckiana include:
A.
Mutations are unidirectional
B.
New elementary species appear suddenly that attain immediately full constancy
AnswerC.
Mutants are produced only once in large numbers, which are subjected to natural selection
D.
Mutations are almost similar to the fluctuating variations
Answer: Option B
Solution
Answer: Option B
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