Contribution of scientist : Hugo de Vries, Hardy - Weinberg and Ernest Haeckel.
Contribution of scientist : Hugo de Vries, Hardy - Weinberg and Ernest Haeckel.
Gave mutation theory it states that evolution occurs by a single step large mutations that are random and directionless.
Reinterpreted Baer's law in the form of recapitulation theory in the light of evolution.
Gave Hardy Weinberg principle, it states that allele frequencies in population are stable and remain constant from generation to generation.
Similar Questions
Given below are four statements $(A-D)$ each with one or two blanks. Select the option which correctly fills up the blanks in two statements. Statements :
$(A)$ Wings of butterfly and birds look alike andare the results of ___$(i)$___ evolution.
$(B)$ Miller showed that $CH_4 , H_2 , NH_3$ and ___$(i)$___ when exposed to electric discharge in a flaskresulted in formation of ___$(ii)$___ .
$(C)$ Vermiform appendix is a ___$(i)$___ organ and an ___$(ii)$___ evidence of evolution.
$(D)$ According to Darwin evolution took placedue to ___$(i)$___ and ___$(ii)$___ of the fittest.
Given below are four statements $(A-D)$ each with one or two blanks. Select the option which correctly fills up the blanks in two statements. Statements :
$(A)$ Wings of butterfly and birds look alike andare the results of ___$(i)$___ evolution.
$(B)$ Miller showed that $CH_4 , H_2 , NH_3$ and ___$(i)$___ when exposed to electric discharge in a flaskresulted in formation of ___$(ii)$___ .
$(C)$ Vermiform appendix is a ___$(i)$___ organ and an ___$(ii)$___ evidence of evolution.
$(D)$ According to Darwin evolution took placedue to ___$(i)$___ and ___$(ii)$___ of the fittest.
- [AIPMT 2010]
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 |
Select the incorrect statements
$I.$ Natural selection is essential for evolution
$II.$ Natural selection do not include variations
$III.$ Concept of natural selection was given by Hugo de Vries
$IV.$ Mutation is the sudden inheritable change
$V.$ Synthetic theory is also called Neo-Darwinism theory of evolution The correct combination is a
Select the incorrect statements
$I.$ Natural selection is essential for evolution
$II.$ Natural selection do not include variations
$III.$ Concept of natural selection was given by Hugo de Vries
$IV.$ Mutation is the sudden inheritable change
$V.$ Synthetic theory is also called Neo-Darwinism theory of evolution The correct combination is a
$A$ : 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
Definitions / Explanation : Evolution & Theory of species creation
Definitions / Explanation : Evolution & Theory of species creation