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Transcript
COLLEGE OF FOUNDATION STUDIES
_____________________________________________________
BIF02: FOUNDATION BIOLOGY A EVOLUTIONARY PATTERNS
QUESTION PAPER - SEMESTER I/2009
FACE TO FACE/PRINT
_____________________________________________________
Time allowed three hours plus 10 minutes reading
100 marks (50% of final grade)
TOTAL NUMBER OF PAGES:
5
MARK VALUE:
100
NUMBER OF SECTIONS:
1
NUMBER OF QUESTIONS:
A – 20 Multiple Choice Questions
NUMBER OF QUESTIONS TO Answer all the questions from Section A by
BE ANSWERED
circling the correct answer on the Multiple Choice
grid provided in the Answer Booklet.
COURSE TITLE: BIF02 FOUNDATION BIOLOGY A – EVOLUTIONARY PATTERNS
Section A
Multiple Choice
2
20 Marks
Circle the best answer on the grid provided on page 3 of the Answer Booklet.
1. During which phase of meiosis are the chromosome tetrads lined up in the center of
the cell?
A.
B.
C.
D.
prophase I
metaphase I
anaphase II
metaphase II
2. The genotypes of a husband and wife are IAIB x IAi. Among the blood types of their
children, how many different genotypes and phenotypes are possible?
A.
B.
C.
D.
2
3
4
4
genotypes;
genotypes;
genotypes;
genotypes;
3
4
4
3
phenotypes
phenotypes
phenotypes
phenotypes
3. A fruit fly has two alleles of a gene for eye colour, but each of its sperm cells has
only one. This illustrates which of the following terms?
A.
B.
C.
D.
segregation
linked genes
pleiotropy
polygeneic inheritance
4. A true breeding rabbit would be _________ for a certain characteristic.
A.
B.
C.
D.
homozygous dominant
homozygous recessive
heterozygous
either homozygous dominant or homozygous recessive
5. Which of the following molecules does not form part of a DNA?
A.
B.
C.
D.
phosphate
pyrimidine
amino acid
deoxyribose sugar
COURSE TITLE: BIF02 FOUNDATION BIOLOGY A – EVOLUTIONARY PATTERNS
3
6. The bacterium Bacillus thuringensis can withstand heat, dryness and toxic chemicals
that would kill most other bacteria. This indicates that it is probably able to form_______
A.
B.
C.
D.
endospores
pseudopodia
pili
flagella
7. Which of the following terms can lead to microevolution?
A.
B.
C.
D.
gene flow
polymorphism
paedomorphosis
exaptation
8. The evolution of numerous species, such as Darwin’s finches, from a single
ancestor is called _____________
A.
B.
C.
D.
adaptive radiation
sympatric speciation
geographical isolation
gradualism
9. Which of the following is thought to have been the first step in the origin of life?
A.
B.
C.
D.
cooperation among molecules
formation of polypeptide spheres
formation of organic monomers
formation of organic polymers
10. Which of the following is not an evidence for the role of endosymbiosis in the
origin of eukaryotes
A.
B.
C.
D.
chloroplast have their own DNA
inner membranes of a chloroplast is similar to prokaryotic membranes
mitochondria reproduced by binary fission
DNA in the eukaryotic nucleus codes for some enzymes in mitochondria
COURSE TITLE: BIF02 FOUNDATION BIOLOGY A – EVOLUTIONARY PATTERNS
4
11. Which of the following organisms does not belong to Kingdom Protista
A. green algae
B. Paramecium
C. yeast
D. diatoms
12. An explorer found a plant that had roots, stems and leaves. It had no flowers but
produced seeds. This plant belongs to which of the plant divisions below?
A. angiosperm
B. gymnosperm
C. ferns
D. bryophytes
13. The gametophyte stage of a plant life cycle is most conspicuous in which of the
following plants?
A.
B.
C.
D.
moss
pine
ferns
roses
14. Lichen is a mutually beneficial connection between which two organisms?
A.
B.
C.
D.
plant roots and fungi
bacteria and fungi
green alga and fungi
protozoan and a plant
15. Which of the following describes the heterokaryotic phase in the life cycle of a typical
fungus?
A.
B.
C.
D.
fusion of two different types of nuclei
a cell containing two different nuclei which has not fused.
haploid spores
zygosporangium
COURSE TITLE: BIF02 FOUNDATION BIOLOGY A – EVOLUTIONARY PATTERNS
5
16. Which of the following animals does not have a body cavity?
A.
B.
C.
D.
ant
flukes
mouse
clam
17. A scientist discovers an animal with bilateral symmetry, a pseudocoelom, a
tubular digestive system, and a thick multilayer cuticle. Which of the following
groups does this animal most likely belong to?
A.
B.
C.
D.
insecta
nematoda
annelida
cnidaria
18. Which of the following are most numerous and successful on land?
A.
B.
C.
D.
mollusks and chordates
annelids and arthropods
arthropods and chordates
annelids and chordates
19. Fishes are most closely related to which of the following animals?
A.
B.
C.
D.
Starfish
Snail
Earthworm
octopus
20. Which of the following is not shared by birds and reptiles?
A.
B.
C.
D.
endothermic metabolism
amniotic eggs
scales made up of keratin
backbone of vertebrae
COURSE TITLE: BIF02 FOUNDATION BIOLOGY A – EVOLUTIONARY PATTERNS
6