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Convergent Evolution

Which of the following animal pairings demonstrates the principle of convergent evolution?

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Acylcarnitine

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Consider the following diagram (ref. N Engl J Med 1992; 327:19-23).

It can be inferred from the diagram that acylcarnitine is a molecule which:

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RNA in Eukaryotes

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Which of the following is NOT true of the different kinds of RNA in eukaryotes?

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Thyroid Releasing Hormone

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Thyroid releasing hormone is released from which of the following endocrine glands?

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Highest Signal

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A radioactive element is injected into a patient which preferentially accumulates in parasympathetic ganglia. Where will the signal be the highest?

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Keep Them Separated

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Which membranes separate the interstitial fluid from the blood plasma and the interstitial fluid from the intracellular fluid, respectively?

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Human Placenta

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The human placenta is implicated in all of the following EXCEPT one. Which one is the EXCEPTION?

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Oxidative Phosphorylation

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Oxidative phosphorylation is best described as:

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Human Development

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Embryonic mesoderm in humans develops into which of the following structures?

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Order of the Loci

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Gene loci A, B, H and Q are in the same linkage group but not necessarily in that order. Test crosses were done with each cross involving two of the gene loci. A percent recombination was obtained for each pair of gene loci.

What is the order of the loci?

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