Which of the following cannot be explained by Lamarckism?

  • A
    Absence of limbs in snakes
  • B
    Long neck of giraffe
  • C
    Degeneration of visual apparatus in cave dwellers
  • D
    Dull progeny of Nobel laureate

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Similar Questions

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

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 and are the results of $ . . . . . . (i) . . . . . . $ evolution.
$(B)$ Miller showed that $CH_4, H_2, NH_3$ and $ . . . . . . (i) . . . . . . $ when exposed to electric discharge in a flask resulted in formation of $ . . . . . . (ii) . . . . . . $.
$(C)$ Vermiform appendix is a $ . . . . . . (i) . . . . . . $ organ and an $ . . . . . . (ii) . . . . . . $ evidence of evolution.
$(D)$ According to Darwin,evolution took place due to $ . . . . . . (i) . . . . . . $ and $ . . . . . . (ii) . . . . . . $ of the fittest.

Define and explain divergent evolution,convergent evolution,and mutation.

Match the factors of modern synthetic theory/speciation in Column $I$ with the examples in Column $II$ and select the correct option.
Column $I$Column $II$
$A$. Natural selection$I$. Darwin's finches
$B$. Geographical isolation$II$. Mule
$C$. Hybrid sterility$III$. Cichlid fishes in Lake Victoria
$D$. Sympatric speciation$IV$. Biston carbonaria

Which one of the following is not a living fossil?

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