Q376
Allen
EVIDENCES OF ORGANIC EVOLUTION
MCQ
The age of fossils is determined by :
A.
analysis of bones
B.
radioactive CĀ¹4 dating
C.
electron microscopy
D.
weighing the fossils
Q377
Allen
EVIDENCES OF ORGANIC EVOLUTION
MCQ
Missing link in evolution is :
A.
Peripatus
B.
Limulus
C.
Pheretima
D.
Archaeopteryx
Q378
Allen
EVIDENCES OF ORGANIC EVOLUTION
MCQ
Convergent evolution of two species is associated with:
A.
analogous organs
B.
recent common ancestor
C.
homologous organs
D.
different habitat
Q379
Allen
EVIDENCES OF ORGANIC EVOLUTION
MCQ
Organs which have the same fundamental structure but are different in function, are called?
A.
vestigial organs
B.
homologous organs
C.
analogous organs
D.
homoplastic organs
Q380
Allen
EVIDENCES OF ORGANIC EVOLUTION
MCQ
Wings of insects and wings of birds are the examples of :
A.
Analogy
B.
Homology
C.
Serology
D.
Mimicry
Q381
Allen
EVIDENCES OF ORGANIC EVOLUTION
MCQ
Flippers of seal are modified :
A.
fins
B.
hindlimb
C.
forelimb
D.
gills
Q382
Allen
EVIDENCES OF ORGANIC EVOLUTION
MCQ
Darwin's finches are an example of :
A.
Divergent evolution
B.
Adaptive radiation
C.
Allopatric speciation
D.
All of these
Q383
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
Theory of evolution is mainly concerned with:
A.
Spontaneous generation
B.
Theory of special creation
C.
Gradual change
D.
Conditions of environment
Q384
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
Change with descent is the basis of which theory?
A.
Recapitulation theory
B.
Oparin's theory
C.
Theory of organic evolution
D.
Cell theory
Q385
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
Name of the scientist who gave Mutation Theory:
A.
Wallace
B.
Malthus
C.
Darwin
D.
De Vries
Q386
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
Darwin's Theory of Natural Selection was based on:
A.
Inheritance of acquired characters
B.
Mutation
C.
Enormous rate of reproduction in organisms, struggle for existence and survival of the fittest
D.
Changes due to the use and disuse of organs
Q387
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
Snakes do not have legs because :
A.
Legs are lost during their entry in tunnels
B.
Legs are lost during evolution
C.
The ancestors of reptiles did not have legs
D.
There are no legs in lizards
Q388
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
One of the revolutionary concepts in biology was Charles Darwin's 'Origin of Species'. It deals with
A.
Gene mutation
B.
Use and disue of organs
C.
Germplasm Theory
D.
Natural selection leading to the survival of the fittest
Q389
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
Which of the following is responsible for evolution according to Neo-Darwinism ?
A.
Mutation
B.
Natural selection
C.
Mutation and Natural selection
D.
Either 1 or 2
Q390
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
A Scientist kept 69 generations of Drosophila in darkness even after that the flies had normal eyes, this disproves the law of :
A.
Synthetic theory
B.
Natural selection
C.
Germplasm theory
D.
Acquired characters are inherited
Q391
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
The ultimate source of variation is :
A.
Mutation
B.
Sexual reproduction
C.
Natural selection
D.
Hormonal action
Q392
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
Which is the most important factor for evolution of new species ?
A.
Geographic isolation
B.
Extensive in-breeding
C.
Reproductive isolation
D.
Adaptation
Q393
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
Gene pool is :
A.
Genotype of an individual of a population
B.
Different genes of all individuals of a species found in an area
C.
Pool of artificially synthesised genes
D.
Genes of a genus
Q394
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
Which of the following evidences does not favour the Lamarckian concept ?
A.
Absence of limbs in snakes
B.
Presence of webbed toes in aquatic birds
C.
Melanization in peppered moth in industrial area
D.
Lack of pigment in cave dwelling animals
Q395
Allen
THEORIES OF ORGANIC EVOLUTION
Match the Columns
Match the following columns and find correct combination :
Match Column-I with Column-II
Match Column-I with Column-II
| Column-I | Column-II | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
A.
A = R, B = P, C = T, D = Q
B.
A = P, B = Q, C = R, D = S
C.
A = T, B = R, C = Q, D = P
D.
A = R, B = T, C = P, D = Q
Q396
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
Frequency of an allele in an isolated population may change due to :-
A.
Genetic drift
B.
Gene flow
C.
Mutation
D.
Natural selection
Q397
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
There are two alleles (Aā& Aā) out of which one (Aā) has nil abundance in a population then the abundance of second allele (Aā) is
A.
0.25
B.
1.00
C.
0.40
D.
0.50
Q398
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
The migration of gene in to a population from other population by interbreeding is called :-
A.
Gene pool
B.
Gene flow
C.
Genetic drift
D.
Gene erosion
Q399
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
Equilibrium of gene frequencies is :-
A.
$\mathsf { P } ^ { 2 } \times 2 \mathsf { P } \mathsf { q } \times \mathsf { q } ^ { 2 } = 1$
B.
$\sigma = { \sqrt { \frac { \mathsf { P q } } { \mathsf { N } } } }$
C.
Hardy Weinberg law
D.
Mutation
Q400
Allen
THEORIES OF ORGANIC EVOLUTION
MCQ
In a random mating population of 28,800 individuals, percentage of dominant homozygous individuals is 49% find out the percentage of heterozygous individuals :
A.
21%
B.
42%
C.
32%
D.
9%