- 1(current)
Q. No.Variations caused by mutation, as proposed by Hugo de Vries, are:
| 1. | small and directionless | 2. | random and directional |
| 3. | random and directionless | 4. | small and directional |
Subtopic: Â Mechanism of Evolution |
 79%
From NCERT
NEET - 2019
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The idea of mutations was brought forth by:
| 1. | Gregor Mendel, who worked on Pisum sativum |
| 2. | Hardy Weinberg, who worked on allele frequencies in a population |
| 3. | Charles Darwin, who observed a wide variety of organisms during sea voyages |
| 4. | Hugo do Vries, who worked on evening primrose |
Subtopic: Â Mechanism of Evolution |
 86%
From NCERT
AIPMT - 2012
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Select the correct statement regarding the mutation theory of evolution:
| 1. | This theory was proposed by Alfred Wallace. |
| 2. | Variations are small directional changes. |
| 3. | Single-step large mutation is a cause of speciation. |
| 4. | Large differences due to mutations arise gradually in a population. |
Subtopic: Â Mechanism of Evolution |
 69%
From NCERT
NEET - 2022
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- 1(current)
Q. No.
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