The diagram above is an illustration of one of the theories of evolution. Who proposed the theory in the illustration?
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2018
The chemical bond that holds the bases of the two strands of DNA together is
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2018
A plant cell has 14 chromosomes prior to mitosis. What is the number of chromosomes in the daughter cells?
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2018
Genes that remain linked are those
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2018
The diagrams above are illustrations of the inheritance of coat colour in mice. J, K, L, M and N are parents. The cross between two parent mice gave rise to offspring P, Q, R and S. Which of the offspring are all homozyg…
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2018
The exchange of genes between homologous chromosomes is called
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2018
The greatest contribution to genetic studies was made by
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2018
Two unconscious patients X and Y whose blood group genotypes are AO and AB respectively were transfused with the blood from the same donor . Patient X immediately showed signs of difficulty in breathing while patient Y s…
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2018
Two unconscious patients X and Y whose blood group genotypes are AO and AB respectively were transfused with the blood from the same donor . Patient X immediately showed signs of difficulty in breathing while patient Y s…
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2018
Conservation of wildlife is necessary mainly because
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2018
Which of the following disease ic caused by a bacterium?
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2018
When large numbers of organisms share limited space and resources, the immediate result is
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2018
An association between living organisms in which one lives on and feeds at the expense of the other is known as
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2018
Xerophytes have the following characteristics aimed at conserving water except
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2018
In an ecosystem, the least efficient energy transfer link is from the
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2018
Which of the following instruments is used to determine the turbidity of water?
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2018
The diagram above is an illustration of organisms in an air-tight aquarium.The most important factor needed by the organisms is