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qid 3208 · biology
Question: Which of the following is most correct concerning cell differentiation in vertebrates?
- Differences between tissues result from spontaneous morphogenesis.
- Differences in the timing and expression levels of different genes leads to structural and functional differences.
- Cells in different tissues contain different sets of genes, leading to structural and functional differences.
- Differences in the reading frame of mRNA leads to structural and functional differences.
- All cells in vertebrates differentiate identically, there are no structural or functional differences.
- Differences in the timing and levels of RNA transcription leads to structural and functional differences.
- Differences between tissues result from spontaneous mutations.
- Differences in the structure of the cell nucleus leads to structural and functional differences.
- Differences in the timing of protein synthesis leads to structural and functional differences.
- Cells in the same tissues contain different sets of genes, leading to structural and functional differences.
Our answer: B. Differences in the timing and expression levels of different genes leads to structural and functional differences. Source quote machine-checked (exact quote)
How it was answered
Multi-step solver (maze), replayed by code
Current source
Alberts et al., Molecular Biology of the Cell, 4th ed. (NCBI Bookshelf)
https://www.ncbi.nlm.nih.gov/books/NBK26872/
“Different selections of gene regulatory proteins are present in different cell types and thereby direct the patterns of gene expression that give each cell type its unique characteristics.”
Source quote machine-checked (exact quote)
Earlier version (superseded)
No public source has been found for this card yet (3 places checked internally).
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