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BSCS Sem 1 Rvw Game
Test Description: This game is a cumulative review from the freshmen year BSCS curriculum.
Instructions: Answer all questions to get your test result.
1) Biologists group living things into how many domains?
A
2
B
3
C
5
D
4
2) Researchers testing new drugs usually give the drug to one group of people and give placebos,
A
is needed so that the test will be repeated enough times.
B
constitutes the experimental group.
C
is the control group.
D
is the experimental variable.
3) A DNA molecule is a polymer made of subunits (monomers) called
A
amino acids
B
bases
C
nucleotides
D
nucleic acids
4) The information carried by a DNA molecule is in
A
the sugars and phosphates forming its backbone.
B
its amino acid sequence.
C
the total number of nucleotides it contains.
D
the order of bases (As, Ts, Cs and Gs) in the molecule.
5) A gene is
A
a sequence of bases that determine the traits of an organism.
B
made by a ribosome.
C
the same thing as a chromosome.
D
made of protein.
6) Organisms that possess homologous structures probably
A
by chance had similar mutations in the past.
B
are headed for extinction.
C
evolved from the same ancestor.
D
by chance had similar mutations in the past.
7) We know a lot about fossil crabs, snails and corals, but not much about ancient seaweeds. Why do you suppose this is the case?
A
Seaweeds were too soft to fossilize well.
B
Animal life was much more abundant than seaweeds in ancient times.
C
A mass extinction wiped out the seaweeds, but animals survived.
D
There were no seaweeds in ancient oceans.
8) The fossil record of horses reveal that
A
complex structures often evolve step-by-step.
B
horses all evolved from different ancestors.
C
horses have not changed since they were created.
D
all species horses were created at the same time.
9) The oldest fossils usually
A
are found above younger fossils.
B
have the longest half-lives.
C
are found in the deepest strata.
D
contain more radioactive isotopes than younger fossils.
10) Fossils of an ancient reptile called Lystrosaurus have been found in Africa, India and Antarctica. Which of the following best explains this distribution?
A
Movement of India due to continental drift carried them from place to place.
B
They were able to move between continents before the oceans filled.
C
They were once next to each other and since drifted apart.
D
They were able to migrate over frozen seas during the Ice Ages.
*select an answer for all questions
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