Question:

Biogenetic law was given by

Updated On: Jul 28, 2022

Hugo de Vries
Darwin
Haeckel
Lamarck

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The Correct Option is C

Solution and Explanation

In $1828$, Von Baer, the father of modem embryology, proposed Baer's law which stated that during embryonic development, the generalised features (such as brain, spinal cord, axial skeleton, aortic arches, etc. are common to all vertebrates) appeared earlier than the special features (like hair in mammals only, feathers in birds only, limbs found in quadrupeds only) which distinguish the various members of the group. Later on this law was modified as the biogenetic law or recapitulation theory by Ernst Haeckel in $1866$. Haeckel's biogenetic law states that "Ontogeny repeats phylogeny". Ontogeny is the life history of an organism while phylogeny is the evolutionary history during its development.

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Concepts Used:

Evolution and Natural Selection

Charles Darwin - was a British naturalist who proposed the theory of biological evolution by natural selection. Darwin derived evolution as "descent with modification," the idea that species change gradually, give rise to new species and share a common ancestor. Darwin had proposed natural selection - the mechanism for evolution. Because resources are short in nature, organisms with heritable traits that favor survival and reproduction will lean to leave more offspring than their peers, causing the traits to rise in frequency over generations. The consequence of natural selection on populations is to become adapted, or increasingly well-suited, to their environments steadily. Natural selection entirely depends on the environment and needs existing heritable variation in a group.

Read More: Types of Natural Selection