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Developmental biology: Quiz


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Question 1: These can take part in self-perpetuating circuits in the ________, circuits that can involve several cells that communicate with each other.
Gene expressionGene regulatory networkEpigeneticsDNA

Question 2: An understanding of the specialization of cells during embryogenesis may yield information on how to specialize stem cells to specific tissues and organs, which could lead to the specific ________ of organs for medical purposes.

Question 3: Embryonal development does not always proceed correctly, and errors can result in birth defects or ________.
Ectopic pregnancyMiscarriageBreech birthHydatidiform mole

Question 4: [7] External signals can alter gene expression by activating a receptor, which triggers a ________ that affects transcription factors.
Lipid signalingSignal transductionEndocrine systemMembrane receptor

Question 5: [16] The size of an organ frequently determines its growth, as in the case of the ________ which grows back to its previous size if a part is removed.
PancreasLiverEndocrine systemImmune system

Question 6: The findings of developmental biology can help to understand developmental malfunctions such as chromosomal aberrations, for example, ________.
Turner syndromeDown syndromeTrisomy 18XYY syndrome

Question 7: The formation of cell types like ________ occurs with a number of intermediary, less differentiated cell types.
Glial cellNeuronNervous systemPhotoreceptor cell

Question 8: Fruit fly Drosophila melanogaster (________)
Drosophila embryogenesisDevelopmental biologyHedgehog signaling pathwayChristiane Nüsslein-Volhard

Question 9: [12][13] Abnormal development is also of evolutionary interest as it provides a mechanism for changes in body plan (see ________).
Natural selectionIntroduction to evolutionLifeEvolutionary developmental biology

Question 10: Another biologically important process that occurs during development is ________ - programmed cell death or "suicide".
Signal transductionApoptosis-inducing factorApoptosisTranscription factor

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