Main basis of Neo-Darwinism is

  • A

    Struggle for existence

  • B

    Variations

  • C

    Survival of the fittest

  • D

    Gene theory

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Darwin proposed that new species evolve from ancestral forms by the

Match the following by using codes:

$A.$ Vernalization                         -          $1. $ Camerarius

$B.$ Double fertilization                -          $2.$  Hofmeister

$C.$ Pollination                             -          $3. $ Lysenko

$D.$ Alternation of Generations    -          $4. $ Nawaschin

Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of

  • [NEET 2014]

Species is

Bacteriophage transfers $DNA$  from donor to recipient cell, this is called