Multiple Choice QuestionsThe finches of Galapagos islands provide an evidence in favour of
special creation
evolution due to mutation
retrogressive evolution
retrogressive evolution
Which one of the following statement is correct?
Stem cells are specialize cells
There is no evidence of the existence of gills during embryogensis of mammals
All plant and animal cells are totipotent
All plant and animal cells are totipotent
What is common to whale, seal and shark?
Seasonal migration
Thick subcutaneous fat
Convergent evolution
Convergent evolution
Adaptive radiation refers to
adaptations due to geographical isolation
evolution of different species from a common ancestor
migration of members of a species to different geographical areas
migration of members of a species to different geographical areas
When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed
divergent evolution
microevolution
co-evolution
co-evolution
Which one of the following amino acids was not found to be synthesized in Miller's experiment?
Glycine
Aspartic acid
Glutamic acid
Glutamic acid
An important evidence in favour of organic evolution is the occurrence of
homologous and vestigial organs
analogous and vestigial organs
homologous organs only
homologous organs only
A.
homologous and vestigial organs
An important evidence in favour of organic evolution is the occurrence of homologous and vestigial organs. Homologous organs are those which have the common origin and are built on the same fundamental pattern but they perform different functions and have different appearances e.g., whale's flipper, bat's wings, cat's paw, horse's front leg, bird's wing, ox's front leg and human hand.
Vestigial organs in animals are those having no function now, in them, but had important functions in their ancestors.
Analogous organs are quite different in fundamental structure and embryonic origin but perform the same function. The study of analogous organs illustrates the occurrence of convergent evolution.
Jurassic period of the Mesozoic era is characterised by
gymnosperms are dominant plants and first birds appear
radiation of reptiles and origin of mammal like reptiles
dinosaurs become extinct and angiosperms appear
dinosaurs become extinct and angiosperms appear
A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by
Only daughters
Only sons
Both sons and daughters
Only grandchildren
According to Hugo de Vries, the mechanism of evolution is
Multiple step mutations
Saltation
Minor mutations
Phenotypic variations
Switch
