Which one of the following statements is correct?

1. Stem cells are specialized
2. There is no evidence of the existence of gills during embryogenesis of mammals
3. All plant and animal cells are totipotent
4. Ontogeny repeats phylogeny

Subtopic:  Embryological Evidence of Evolution |
AIPMT - 2007
To view explanation, please take trial in the course.
NEET 2025 - Target Batch