1. The
age of earth is estimate to be about
a)10000 years old
b)4-5
billion years ago
c)600 million year old
d)10-20
2. Which
one of the following are Archaebacteria?
a)Actinomycetes
b)Pseudomonas
c)Rickettisae
d)Methanogens
3.Formation of most amino acids as well as adenine and other nucleic acid bases from inorganic molecules was experimentally shown by
a) Hugo de vries
b) Urey and Miller
c) Oparin and Haldane
d)Pasteur
4.
The most primitive extant eukaryotes belong to the genus
a)plasmodium
b)tetrahymena
c)chlamydomonas
d)Giardia
5. Cambrian
Explosion refers to
a) Origin of life
b)Origin
of phyla
c) Origin of man
d)extinction of Dinosaurs
6.
Which of the following statement cannot be support the endosymbiotic theory for
the orgin of mitochondria?
a)Mitochondria DNA has a circular genome
b)mitochondrial ribosomes are inactivated by
the antibiotic chloramphenicol
c)mitochondrial
genes code for enzymes of oxidative respiration
d)mitochondrial ribosomes are 70s
7.
Aerobic respiration is thought to have first appeared in some organisms of
approximate age
a)1.0-1.5bp
b)
2.0-2.5bp
c)3.0-3.5bp
d)3.5-4.0bp
8. Which
of the following process offers the greatest opportunities for accelerating the
evolution of new useful proteins?
a)exon
shuffling
b)intron excisions
c)transposons insertions
d)DNA amplification
9.
The correct chronological sequences of geological times is
a) Devonian,
Carboniferous, Cretaceous, Eocene
b) Eocene, Devonian, Carboniferous, Cretaceous
c) Devonian, Carboniferous, Eocene ,Cretaceous
d) Carboniferous, Devonian, Cretaceous, Eocene
10. The
extant bacterial group that is most closely related to the ancestor from which
mitochondria evolved is
a)purple
photosynthetic bacteria
b)archaebacteria
c)cyanobacteia
d)methanogens
1. b)4-5 billion years ago
2. d)Methanogens
3. b) Urey and Miller
4. d)Giardia
5.b) Origin of phyla
6. c)mitochondrial genes code for enzymes of oxidative respiration
7. b) 2.0-2.5bp
8.a)exon shuffling
9. a) Devonian, Carboniferous, Cretaceous, Eocene
10.a)purple photosynthetic bacteria
