iii. The potato and sweet potato are the
examples of homology
(a) ii and iii correct
(b) i and ii correct
(c) i and iii correct
(d) All i, ii and iii correct
- Given below are four statements (A-D)
each with one or two blanks. Select the option
which correctly fills up the blanks in two
statements
Statements:
(A) Wings of butterfly and brids look a
like and are the results of
evolution.
(B) Miller showed that CH 4 , H 2 , NH 3 and
when exposed to electric
discharge in a flask resulted in formation
of
(C) Vermiform appendix is a organ
and an evidence of evolution.
(D) According to Darwin evolution took
place due to and of the fittest.
(a) (A)- (i) Convergent,
(B) - (i) Oxygen, (ii) nucleosides
(b) (A)- (i) Small variations, (ii) Survival,
(B) (i) Convergent
(c) (C)- (i) Vestigial, (ii) Anatomical
(D)- (i) Mutations, (ii) Multiplication
(d) (B)- (i) Water vapour, (ii) Amino acids
(C)- (i) Rudimentary, (ii)
Anatomical - Mark the incorrect statement about the first
noncellular form of life?
(a) These capsules have molecules with no
ability of self replication.
(b) They would have been giant
molecules and the first living giant
molecules was probably a RNA
(c) Originated about 3 billion years back
(d) It was a cluster of nucleoprotein
surrounded by lipid coat - Some major events in the early history of
life are mentioned here.
i. First animal ii. First eukaryotes
iii. First Genes
iv. First heterotrophic prokaryotes
v. First autotrophic prokaryotes.
Identify the option which places them in
correct order
(a) ii, iii, iv, i, v (b) iv, iii, i, ii, v
(c) iii, iv, v, ii, i (d) v, ii, iii, iv, i- Read the following three statements (A to
C) and mark the most appropriate option
A. The fitness in the ‘survival of the fittest’
is based upon the characteristics that
are inherited
B. Darwin’s variations were small and
directional
C. The fitness is the end result of ability to
adapt
(a) Only B and C correct
(b) Only A and B correct
(c) Only A and C correct
(d) All A, B, and C correct - Which of the following statements are
incorrect?
i. Hugo devries called mutations as saltation
because they brought speciation.
ii. Genetic drift is directional end can cause
elimination of certain alleles in the
population.
iii. Genetic bottleneck effect leads to sharp
increase in the size of population or
anthropogene due environmental.
iv. Founder effect results in formation of a
different genotype in a new settlement.
(a) i and iv (b) iii and iv
(c) i and iii (d) ii and iii - Read the following statements and select
the correct ones
i. The early belief of the spontaneous origin
of life was disproved by Louis Pasteur
ii. Founder of ‘theory of catastophism ʹ is
Georges Cuvier
iii. Cosmozoic theory of the origin of life
was proposed by Richter.
iv. Idea of life originates from pre-existing
life is referred to as biogenesis theory.
(a) i, ii and iii (b) i, ii, iii and iv
(c) i, iii and iv (d) i and iv