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Fill in the blank with either: enhancer, promoter, TFII transcription factor, or

ID: 52266 • Letter: F

Question

Fill in the blank with either: enhancer, promoter, TFII transcription factor, or TS transcription factor. (Make sure to check your spelling.)

Genes can have multiple [1], but only one [2].

[3] are proteins that are located in every cell, regardless of cell type, and function to bind [4] to help recruit RNA Pol II.

There are also proteins that are important for cell-specific transcriptional regulation, and are expressed in very specific subsets of cells. These are called [5] and they bind to regulatory regions of DNA called [6].

[7] are regulatory regions of DNA that are always located immediately upstream of a gene, while [8] are regulatory regions of DNA that are not predictably located (they can be upstream, downstream, near or far).

Explanation / Answer

The blanks are filled as follows

1. Transcription factors

2. Enhancer

3. TF II Transcription factors

4. Promoter

5. TS Transcription factors

6. Promoters

7. Promoters

8. Enhancers