Which one of the following statements is correct ?
Which one of the following statements is correct ?
- [AIPMT 2007]
- A
There is no evidence of the existence of gills during embryogenesis of mammals.
- B
All plant and animal cells are totipotent.
- C
Ontogeny repeats phylogeny.
- D
Stem cells are specialized cells.
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- [AIPMT 2004]
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