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(A) Hugo de Vries proposed the mutation theory,which states that evolution occurs through large,sudden,and random mutations.Hardy-Weinberg principle s

Vedclass · Accepted Answer

Hugo de Vries: Mutation theory; Hardy-Weinberg: Allele frequency stability; Ernst Haeckel: Recapitulation theory.

Vedclass · Answer

(A) Hugo de Vries proposed the mutation theory,which states that evolution occurs through large,sudden,and random mutations.Hardy-Weinberg principle states that allele frequencies in a population remain constant from generation to generation in the absence of evolutionary forces.Ernst Haeckel proposed the recapitulation theory (biogenetic law),which states that 'ontogeny repeats phylogeny',meaning an organism's development stages reflect its evolutionary history.

Column-$I$	Column-$II$
$(1)$ Human embryos have gill	$(a)$ Chemical evolution
$(2)$ Oparin and Haldane	$(b)$ Simulation experiment
$(3)$ Miller and Urey	$(c)$ Wings of bird and butterfly
$(4)$ Analogous organ	$(d)$ Ontogeny repeats phylogeny

Match the scientists with their respective contributions: Hugo de Vries,Hardy-Weinberg,and Ernst Haeckel.

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Match the columns:

Column-$I$ Column-$II$

$(1)$ Human embryos have gill $(a)$ Chemical evolution

$(2)$ Oparin and Haldane $(b)$ Simulation experiment

$(3)$ Miller and Urey $(c)$ Wings of bird and butterfly

$(4)$ Analogous organ $(d)$ Ontogeny repeats phylogeny

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