Q251
Allen
ANALYTICAL QUESTIONS
MCQ
Which one of the following phenomenon supports Darwin's concept of natural selection in organic evolution ?
A.
Production of 'Dolly', the sheep by cloning
B.
Development of organs from 'stem cells' for organ transplantation
C.
Development of transgenic animals
D.
Prevalence of pesticide resistant insects
Q252
Allen
ANALYTICAL QUESTIONS
MCQ
Man who firstly believed in immortality of soul was ?
A.
Neanderthal man
B.
Cro-Magnon
C.
Java man
D.
Peking man
Q253
Allen
ANALYTICAL QUESTIONS
MCQ
Which of the following is not true for a species?
A.
Members of a species can interbreed.
B.
Variations occur among members of a species.
C.
Gene flow does not occur between the populations of a species.
D.
Each species is reproductively isolated from every other species.
Q254
Allen
ANALYTICAL QUESTIONS
MCQ
In evolution the studies can be made at molecular level. For example the protein present in the blood of man and ape are similar. The base sequence in nucleic acids and amino acids sequence in protein in related organism is alike. These are the examples which one specifically referred to in:
A.
Convergent evolution
B.
Molecular analogy
C.
Molecular homology
D.
Homoplastic appearance
Q255
Allen
ANALYTICAL QUESTIONS
MCQ
Which of the following statement is incorrect?
A.
Life processes are consequences of reactions that occur in an organism
B.
Living organism are made of inorganic and organic compounds.
C.
Life comes from pre-existing life
D.
Genes are not responsible for the stability or changeability of species
Q256
Allen
ANALYTICAL QUESTIONS
MCQ
Select the correct statement from the following :-
A.
Darwinian variations are small and directionless.
B.
Fitness is the end result of the ability to adapt and gets selected by nature.
C.
All mammals except whales and camels have seven cervical vertebrae.
D.
Mutations are random and directional.
Q257
Allen
ANALYTICAL QUESTIONS
MCQ
Which of the following are not analogous organs ?
A.
Fins of fishes and flippers of whales
B.
Stings of honey bee and scorpion
C.
Thorn of bougainvillea and tendril of Cucurbita
D.
Wings of insect and wings of bird
Q258
Allen
ANALYTICAL QUESTIONS
MCQ
Which one of the following amino acid was not found to be synthesized in Miller's experiment-
A.
Glycine
B.
Aspartic acid
C.
Glutamic acid
D.
Alanine
Q259
Allen
ANALYTICAL QUESTIONS
MCQ
An important evidence in favour of organic evolution is the occurrence of ā
A.
Homologous and vestigial organs
B.
Analogous and vestigial organs
C.
Homologous organs only
D.
Homologous and analogous organs
Q260
Allen
ANALYTICAL QUESTIONS
MCQ
Evolutionary history of an organism is known as:
A.
Phylogeny
B.
Ancestry
C.
Paleontology
D.
Ontogeny
Q261
Allen
ANALYTICAL QUESTIONS
MCQ
Sickle cell anemia has not been eliminated from the African population because ā
A.
it is controlled by recessive genes
B.
it is not a fatal disease
C.
it provides immunity against malaria
D.
it is controlled by dominant genes
Q262
Allen
ANALYTICAL QUESTIONS
MCQ
One of the important consequences of geographical isolation is :-
A.
no change in the isolated fauna
B.
preventing Speciation
C.
speciation through reproductive isolation
D.
random creation of new species
Q263
Allen
ANALYTICAL QUESTIONS
MCQ
Among the human ancestors the brain size was more than 1000 CC in: -
A.
Homo neanderthalensis
B.
Homo erectus
C.
Ramapithecus
D.
Homo habilis
Q264
Allen
ANALYTICAL QUESTIONS
MCQ
Two plants can be conclusively said to belong to the same species if they: -
A.
can reproduce freely with each other and form seeds.
B.
have more than 90 percent similar genes.
C.
look similar and possess identical secondary metabolites.
D.
have same number of chromosomes.
Q265
Allen
ANALYTICAL QUESTIONS
MCQ
The Finches of Galapagos islands provide an evidence in favour of: -
A.
Special Creation
B.
Evolution due to Mutation
C.
Retrogressive Evolution
D.
Biogeographical Evolution
Q266
Allen
ANALYTICAL QUESTIONS
MCQ
What is common to whale, seal and shark :-
A.
Seasonal migration
B.
Thick subcutaneous fat
C.
Convergent evolution
D.
Homoiothermy
Q267
Allen
ANALYTICAL QUESTIONS
MCQ
Adaptive radiation refers to: -
A.
Adaptations due to Geographical isolation.
B.
Evolution of different species from a common ancestor.
C.
Migration of members of a species to different geographical areas.
D.
Power of adaptation in an individual to a variety of environments.
Q268
Allen
ANALYTICAL QUESTIONS
MCQ
When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed :-
A.
Divergent evolution
B.
Microevolution
C.
Co-evolution
D.
Convergent evolution
Q269
Allen
ANALYTICAL QUESTIONS
MCQ
The concept of chemical evolution is based on:
A.
Crystallization of chemicals
B.
Interaction of water, air and clay under intense heat
C.
Effect of solar radiation on chemicals
D.
Possible origin of life by combination of chemicals under suitable environmental conditions
Q270
Allen
ANALYTICAL QUESTIONS
MCQ
Industrial melanism as observed in peppered moth proves that:
A.
The true black melanic forms arise by a recurring random mutation.
B.
The melanic form of the moth has no selective advantage over lighter form in industrial area.
C.
The lighter-form moth has no selective advantage either in polluted industrial area or non-polluted area.
D.
Melanism is pollution-generated feature.
Q271
Allen
ANALYTICAL QUESTIONS
MCQ
Which one of the following statements is correct: -
A.
Stem cells are specialized cells
B.
There is no evidence of the existence of gills during embryogenesis of mammals
C.
All plant and animal cells are totipotent
D.
Ontogeny repeats phylogeny
Q272
Allen
ANALYTICAL QUESTIONS
MCQ
Which one of the following is incorrect about the characteristics of protobionts (coacervates and microspheres) as envisaged in the abiogenic origin of life?
A.
They were partially isolated from the surroundings.
B.
They could maintain an internal environment.
C.
They were able to reproduce.
D.
They could separate combinations of molecules from the surroundings.
Q273
Allen
ANALYTICAL QUESTIONS
MCQ
Which one of the following scientist's name is correctly matched with the theory put forth by him?
A.
de Vries ā Natural selection
B.
Mendel ā Theory of pangenesis
C.
Weismann ā Theory of continuity of Germplasm
D.
Pasteur - Inheritance of acquired characters
Q274
Allen
ANALYTICAL QUESTIONS
MCQ
In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of:-
A.
Inheritance of darker colour character acquired due to the darker environment
B.
Natural selection whereby the darker forms were selected.
C.
Appearance of the darker coloured individuals due to very poor sunlight.
D.
Protective mimicry.
Q275
Allen
ANALYTICAL QUESTIONS
MCQ
Darwin's finches are a good example of
A.
Convergent evolution
B.
Industrial melanism
C.
Connecting link
D.
Adaptive radiation