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Biology WAEC / WASSCE 2011 Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Which of the following statements best describes protein synthesis?
A
DNA is directly involved in translation
B
translocation oft e ribosomes exposes a new codon for base pairing with an amino acid
C
Each tRNA with a particular anticodon always carries a different protein in the process
D
One amino acid is always carried by more than one
medium Difficulty
Biology WAEC / WASSCE 2011 Variation & Genetics (Heredity)
If a person has two alleles of the sickle cell anaemia gene, the person
A
is a heterozygous carrier of the disease
B
is immune to the disease and cannot pass it on to an offspring
C
has the disease
D
is probably of Asian ancestry
medium Difficulty
Biology WAEC / WASSCE 2011 Variation & Genetics (Heredity)
What is the probability? of a man of blood group AB married to a woman of blood group O producing a child of blood group O?
A
0%
B
25%
C
50%
D
75%
medium Difficulty
Biology WAEC / WASSCE 2011 Variation & Genetics (Heredity)
A man with blood group It IA IA is married to a woman with blood group IA IO. The blood group of their son is likely to be
A
A
B
O
C
B
D
AB
medium Difficulty
Biology WAEC / WASSCE 2011 Adaptation & Evolution
Natural selection is a consequence of
A
distribution of organisms
B
adverse conditions
C
variation in organisms
D
inbreeding
medium Difficulty
Biology WAEC / WASSCE 2011 Variety of Organisms & Classification of Living Things
Which of the following components of Larmark’s theory of evolution is considered faulty?
A
Individuals of the same species growing under different environmental conditions differ from each other
B
Use of certain organs result in development of those parts
C
Unused organs degenerate
D
Changes that result in individuals of the same species are transmitted to offspring
medium Difficulty
Biology WAEC / WASSCE 2011 Variety of Organisms & Classification of Living Things
A vestigial structure in humans is
A
earlobe
B
toe bone
C
tail bone
D
spleen
medium Difficulty
Biology WAEC / WASSCE 2011 Variation & Genetics (Heredity)
Adenine pairs with thymine because
A
the two occur in the same nucleic acid
B
one is a strong base and the other a weak base
C
two purine bases easily pair up
D
one is a purine base and the other a pyrimidine.
medium Difficulty
Biology UTME / JAMB 2011 Variety of Organisms & Classification of Living Things
The function of the red head in male Agama lizards is to
A
conceal and camouflage the animal from predators
B
scare other males from the territory
C
attract female lizards for mating purposes
D
warm predators of the distastefulness of the animal
medium Difficulty
Biology UTME / JAMB 2011 Variety of Organisms & Classification of Living Things
Seed plants are divided into
A
trachephytes and ferns
B
angiosperms and gymonsperms
C
monocotyledons and dicotyledons
D
thallophytes and bryophytes
medium Difficulty
Biology UTME / JAMB 2011 Variety of Organisms & Classification of Living Things
In which of the following groups of vertebrates is parental care mostly exhibited ?
A
Reptilia
B
Amphibia
C
Aves
D
Mammalia
medium Difficulty
Biology UTME / JAMB 2011 Adaptation & Evolution
The adaptive importance of nuptial flight from termite colonies is to
A
disperse the reproductives in order to establish new colonies
B
provide abundant food for birds and other animals during the early rains
C
ensure cross-breeding between members of one colony and another
D
expel the reproductives so as to provide enogh food for other members
medium Difficulty
Biology UTME / JAMB 2011 Variety of Organisms & Classification of Living Things
An example of an endospermous seed is
A
maize gain
B
cashew nut
C
cotton seed
D
been seed
medium Difficulty
Biology UTME / JAMB 2011 Cell & Its Environment (Diffusion, Osmosis & Transport)
Which of the following can cause shrinkage of living cells?
A
Hypotonic solution
B
Isotonic solution
C
Deionized water
D
Hypertonic solution
medium Difficulty
Biology UTME / JAMB 2011 Transport System in Plants & Animals
Which of the following is true of leucocytes?
A
they are respiratory pigments
B
they are most numerous and ramify all cells
C
they are large and nucleated
D
they are involved in blood clotting
medium Difficulty
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