Definitions / Explanation : Recapitulation theory or Biogenetic law & Palaeontology
Definitions / Explanation : Recapitulation theory or Biogenetic law & Palaeontology
This theory says that "Ontogeny recapitulates evolutionary history.
This means an organism repeats its ancestral history during its development.
It is the study of past life based on the fossil records. It furnishes the most direct and most reliable evidence for evolution.
Similar Questions
Definitions / Explanation : Analogous organs & Vestigial or rudimentary organs
Definitions / Explanation : Analogous organs & Vestigial or rudimentary organs
$A$ : $A$ single large mutation called saltation can produce new species.
$R$ : Mutations are directional
$A$ : $A$ single large mutation called saltation can produce new species.
$R$ : Mutations are directional
Match the columns :
Column - $I$
Column - $II$
$(1)$ Mutation
$(a)$ Change in population allele frequencies due to chance alone.
$(2)$ Gene flow
$(b)$ Difference insurvival and reproduction
$(3)$ Natural selection
$(c)$ Immigration, emigration change allele frequencies.
$(4)$ Genetic drift
$(d)$ Source of new alleles.
Match the columns :
| Column - $I$ | Column - $II$ |
| $(1)$ Mutation | $(a)$ Change in population allele frequencies due to chance alone. |
| $(2)$ Gene flow | $(b)$ Difference insurvival and reproduction |
| $(3)$ Natural selection | $(c)$ Immigration, emigration change allele frequencies. |
| $(4)$ Genetic drift | $(d)$ Source of new alleles. |
$A$ : During evolution pouched mammals of Australia survived.
$R$ : Due to lack of competition from any other mammal due to continental drift
$A$ : During evolution pouched mammals of Australia survived.
$R$ : Due to lack of competition from any other mammal due to continental drift
Evolution is
Evolution is