Definitions / Explanation : Homology & Adaptive radiation or divergent evolution
Definitions / Explanation : Homology & Adaptive radiation or divergent evolution
It is the similarity between organs of different animals based on common ancestry or common embryonic origin and built on the same fundamental pattern but perform varied functions and have different appearance e.g. Seal flipper and forelimbs of birds, bat, horse and human look different, perform different functions but exhibit same structural plan.
It represents evolution of new forms in several directions from the common ancestral type (divergence).
Similar Questions
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. |
Match the columns :
Column - $I$
Column - $II$
$(1)$ Human embryos have gill
$(a)$ Chemical evolution
$(2)$ Oparin and Haldane
$(b)$ Stimulation experiment
$(3)$ Miller and uray
$(c)$ Wings of bird and butterfly
$(4)$ Analogous organ
$(d)$ Outogeny repeats phylogeny
Match the columns :
| Column - $I$ | Column - $II$ |
| $(1)$ Human embryos have gill | $(a)$ Chemical evolution |
| $(2)$ Oparin and Haldane | $(b)$ Stimulation experiment |
| $(3)$ Miller and uray | $(c)$ Wings of bird and butterfly |
| $(4)$ Analogous organ | $(d)$ Outogeny repeats phylogeny |
Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogentc action$?$
$(a)$ Darwin's Finches of Galapagos islands.
$(b)$ Herbicide resistant weeds.
$(c)$ Drug resistant eukaryotes.
$(d)$ Man$-$created breeds of domesticated animals like dogs.
Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogentc action$?$
$(a)$ Darwin's Finches of Galapagos islands.
$(b)$ Herbicide resistant weeds.
$(c)$ Drug resistant eukaryotes.
$(d)$ Man$-$created breeds of domesticated animals like dogs.
- [NEET 2020]
Match the columns :
Column - $I$
Column - $II$
$(1)$ Charles Darwin
$(a)$ Mutation theory
$(2)$ Lamarck
$(b)$ Germ plasm theory
$(3)$ Hugo de vries
$(c)$ Philosophie zoologique
$(4)$ Ernst Haeckel
$(d)$ The origin of species
$(5)$ August Weismann
$(e)$ Biogenetic law
$(f)$ Eassy on population
Match the columns :
| Column - $I$ | Column - $II$ |
| $(1)$ Charles Darwin | $(a)$ Mutation theory |
| $(2)$ Lamarck | $(b)$ Germ plasm theory |
| $(3)$ Hugo de vries | $(c)$ Philosophie zoologique |
| $(4)$ Ernst Haeckel | $(d)$ The origin of species |
| $(5)$ August Weismann | $(e)$ Biogenetic law |
| $(f)$ Eassy on population |
Match the following.
Column $- I$
Column $- II$
$(A)$ Lamark
$(p)$ Finch bird
$(B)$ De Vries
$(q)$ Evening primerose
$(C)$ Darwin
$(r)$ Giraffes
$(s)$ Melanic moths
Match the following.
| Column $- I$ | Column $- II$ |
| $(A)$ Lamark | $(p)$ Finch bird |
| $(B)$ De Vries | $(q)$ Evening primerose |
| $(C)$ Darwin | $(r)$ Giraffes |
| $(s)$ Melanic moths |