Q226
Allen
NCERT BASED QUESTIONS
MCQ
Forelimbs of whale, bat, cheetah and human do not show a. Similarities in the pattern of bones b. Adaptive radiation c. Analogous organs d. Convergent evolution e. Divergent evolution f. Different structures evolving for same functions
A.
a, b and c
B.
c, d and f
C.
a and d
D.
a, d and c
Q227
Allen
NCERT BASED QUESTIONS
MCQ
Therapsids were evolved into -
A.
Dinosaurs
B.
Reptiles
C.
Birds
D.
Mammals
Q228
Allen
ANALYTICAL QUESTIONS
MCQ
Believers of spontaneous generation theory believed that :
A.
Life originated from other similar organisms or spontaneously
B.
Life originated only spontaneously
C.
Life originated from similar organisms
D.
Life originated from air
Q229
Allen
ANALYTICAL QUESTIONS
MCQ
Fossilization can occur where :
A.
Animals are buried and preserved by natural process
B.
Animals are destroyed by scavangers
C.
Animals are eaten by predators
D.
Animals are destroyed by environmental conditions
Q230
Allen
ANALYTICAL QUESTIONS
MCQ
What is sequence in the evolution of mammals?
A.
Fish-amphibian-bird-mammals
B.
Insect-fish bird-mammals
C.
Fish-amphibian-reptile-mammals
D.
Fish-amphibian-reptile-bird-mammals
Q231
Allen
ANALYTICAL QUESTIONS
MCQ
There would be no evolution if :
A.
The inheritance of acquired characters did not take place
B.
Somatic variations were not inheritable
C.
Gene variations were not found among members of population
D.
Somatic variations would not transform into germinal variations
Q232
Allen
ANALYTICAL QUESTIONS
MCQ
If population of a species is transferred to more suitable environment then it will show:
A.
Protection against enemies
B.
More individuals would survive
C.
Rate of reproduction increases
D.
Unlimited food would be available
Q233
Allen
ANALYTICAL QUESTIONS
MCQ
Which of the following facts develop suspicions in Lamarckism ?
A.
Human females are not born with bored ear pinna although they have been bored for thousands of years.
B.
Giraffe has long neck to eat leaves of tall trees
C.
A stag can run fast to protect against the enemies
D.
None of them
Q234
Allen
ANALYTICAL QUESTIONS
MCQ
Chances of inheritable and evolutionary changes are more in such species which reproduce by :
A.
Parthenogenesis
B.
Fission
C.
Sexual reproduction
D.
Asexual reproduction
Q235
Allen
ANALYTICAL QUESTIONS
MCQ
One major criticism of Darwin's theory is that:
A.
It presumes that environment upon earth has been changing through ages
B.
It does not explain variations with heredity
C.
It overestimates reproductive capacity of animals and plants
D.
It does not explain vestigeal organs
Q236
Allen
ANALYTICAL QUESTIONS
MCQ
Use of atomic bombs may lead to abnormalities even in upcoming generations because of :
A.
Body changes
B.
Air pollution
C.
Changed atoms in atmosphere
D.
Genetic mutation
Q237
Allen
ANALYTICAL QUESTIONS
MCQ
On Galapagos island Darwin observed variation in beaks of birds (Darwin's finches) and he concluded :
A.
Interspecies variation
B.
Intraspecies variation
C.
Natural selection according to food
D.
Inheritance of acquired characters
Q238
Allen
ANALYTICAL QUESTIONS
MCQ
Homologous organs are :-
A.
Wings of cockroach and wings of bats
B.
Wings of insects and wings of birds.
C.
Eye of the octopus and of mammals
D.
Pectoral fins of fishes and forelimbs of horse.
Q239
Allen
ANALYTICAL QUESTIONS
MCQ
Original idea of survival of fittest was of :-
A.
Herbert Spencer
B.
Darwin
C.
Wallace
D.
None of these
Q240
Allen
ANALYTICAL QUESTIONS
MCQ
Fore coming generations are less adaptive than their parental generation due to :-
A.
Natural selection
B.
Mutation
C.
Genetic drift
D.
Adaptation
Q241
Allen
ANALYTICAL QUESTIONS
MCQ
Which of the following are homologous organs?
A.
Wings of birds & Locust
B.
Wings of birds (Sparrow)& Pectoral fins of fish
C.
Wings of bat & Butterfly
D.
Legs of frog & Cockroach
Q242
Allen
ANALYTICAL QUESTIONS
MCQ
Convergent evolution is illustrated by :-
A.
Rat and dog
B.
Bacterium and protozoan
C.
Starfish and cuttle fish
D.
Dogfish and whale
Q243
Allen
ANALYTICAL QUESTIONS
MCQ
Which one of the following sequences was proposed by Darwin and Wallace for organic evolution ?
A.
Overproduction, variations, constancy of population size, natural selection
B.
Variations, constancy of population size, overproduction, natural selection
C.
Overproduction, constancy of population size, variations, natural selection
D.
Variations, natural selection, overproduction, constancy of population size
Q244
Allen
ANALYTICAL QUESTIONS
MCQ
Industrial melanism is an example of :
A.
Drug resistance
B.
Darkening of skin due to smoke from industries
C.
Protective resemblance with the surroundings
D.
Defensive adaptation of skin against ultraviolet radiations
Q245
Allen
ANALYTICAL QUESTIONS
MCQ
Darwin in his 'Natural Selection Theory' did not believe in any role of which one of the following in organic evolution :-
A.
Parasites and predators as natural enemies
B.
Survival of the fittest
C.
Struggle for existence
D.
Discontinuous variations
Q246
Allen
ANALYTICAL QUESTIONS
MCQ
Which one of the following describes correctly the homologous structures ?
A.
Organs with anatomical similarities, but performing different functions
B.
Organs with anatomical dissimilarities, but performing same function
C.
Organs that have no function now, but had an important function in ancestors
D.
Organs appearing only in embryonic stage and disappearing later in the adult
Q247
Allen
ANALYTICAL QUESTIONS
MCQ
What kind of evidence suggested that man is more closely related with chimpanzee than with other hominoid apes ?
A.
Comparison chromosomes morphology only
B.
Evidence from fossil remains and the fossil mitochondrial DNA alone
C.
Evidence from DNA extracted from sex chromosomes, autosomes & mitochondria
D.
Evidence from DNA from sex chromosomes only
Q248
Allen
ANALYTICAL QUESTIONS
MCQ
Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms include :
A.
Study of the conditions of fossilization
B.
Electron spin resonance (ESR) & fossil DNA
C.
Study of carbohydrates/proteins in rocks
D.
Study of carbohydrates/proteins in fossils
Q249
Allen
ANALYTICAL QUESTIONS
MCQ
Presence of gills in the tadpole of frog indicates that :-
A.
Fishes evolved from frog like ancestors
B.
Frogs will have gills in future
C.
Frogs evolved from gilled ancestors
D.
Fishes were amphibious in the past
Q250
Allen
ANALYTICAL QUESTIONS
MCQ
Being all mammals, whales, dolphins, bat, monkey and horse have some common characters but they also show conspicuous differences. This is due to phenomenon of :-
A.
Normalisation
B.
Genetic drift
C.
Divergence
D.
Convergence