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The following events occur during mitosis in a cell:
I. Chromatids separate;
II. Chromosomes become visible;
III. Chromosomes align at the equator
IV. Cytoplasm divides (Cytokinesis):
The correct sequence of the events is
Alll, ll,lV,l.
Bll, lll, l,lV
Cll, l, lll, lV
DII, IV, I, III.
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Question 292
waec2014
In which of the following yam tissues will osmosis occur?
ABoiled and peeled
BRaw and peeled
CBoiled and unpeeled
DRoasted and peeled
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Question 293
waec2014
Which of the following cell inclusions can destroy other cell organelles?
ACentriole
BRibosome
CLysosome
DMitochondrion
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Question 294
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Active transport can be defined as the movement of
Asubstances from a region of high concentration to a region of low concentration
Bsubstances from a region of low concentration to a region of high concentration across a living cell membrane
Csubstances across a living cell membrane using energy from the cell
Dmovement of molecules in a medium
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Question 295
waec2014
Which of the following organisms is the most specialized ?
Aparamecium
BAmoeba
CSpirogyra
DRhizopus
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Question 296
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Which of the following is a living organism?
AMuscle
BNucleus
CYeast
DMitochondrion
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Question 297
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The excretory product in protozoans is
Aamino acid
Buric acid
Cammonia
Durea
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Question 298
waec2013
Darwin noticed that organisms in similar habitats across the world looked alike. This illustrates
Aconvergent evolution
Badaptive radiation
Cco-evolution
Ddescent with modification
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Question 299
waec2013
A scientist who was involved in the development of evolution theory is
Alamarck
Bmendel
Cmorgan
Dpasteur
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Question 300
waec2013
Which of the following features is used by chameleons to escape predation?
Afearsome appearance
Bcoiling tail
Coffensive smell
Dadaptive colouration
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Question 301
waec2013
The function of the drone in a colony of bees is to
Aclean the cells
Bmate with the queen
Cprotect the colony
Dlay eggs
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Question 302
waec2013
Which of the following structures is only formed during cell division in animal cells?
ACell memberane
BCytoplasm
CCentrosome
DRibosome
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Question 303
waec2013
Which of the following traits may be considered in marriage counseling?
AHeight
BFingerprints
CRhesus factor
DColour of skin
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Question 304
waec2013
A man's who suffers from haemophilia marries a woman who is a carrier, what percentage of their children are likely to be haemophilie?
A25%
B50%
C75%
D100%
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Question 305
waec2013
If a boy has blood type O and his mother has blood type A,what is the genotype of his father?
ABB
BAA
CAO
DAB
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Question 306
waec2013
The gene that is only located on X-choromosome is said to be
Aexpressed in females only
Bdefective
Csex-linked
Dexpressed in males only
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Question 307
waec2013
When a man who is Rh-positive marries a woman who is Rh-negative, there will be incidence of
Astill births
Bsicklers
Calbinos
Dliving children
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Question 308
waec2013
A man's blood group is AB. What is the probability of the man giving birth to a child with blood group O?
A0%
B25%
C50%
D100%
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Question 309
waec2013
In genetics, linkages refer to the linking of genes of the
Asame chromosomes
Bdifferent chromosomes
Csame nucleus
Ddifferent nuclei
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Question 310
waec2013
Which of the following statements is not a reason for conserving wildlife?
