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Evolution question

2007 · Q50
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Evolution question

2007 · Q50

NEETBiologyEvolutionMCQ+4 / −1
Which one of the following statements is correct?
  1. A
    Ontogeny repeats phylogeny.
  2. B
    There is no evidence of the existence of gills during embryogenesis of mammals.
  3. C
    Stem cells are specialized cells.
  4. D
    All plant and animal cells are totipotent.
View written solutionFree

Correct answer: A

Haeckel (1810) proposed that developing animal embryo passes through stages resembling adult forms of its ancestors. Ernst Haeckel (1868, 1874) formulated biogenetic law or racapitulation theory which states that ontogeny (developmental history of an individual) repeats phylogeny (development history of races).

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