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TLS Online TPP Program

#Question id: 1092

Which of the following statements is true of steroid receptors?

#4. Cell Communication and Cell Signaling

  1. The receptor molecules are themselves lipids or glycolipids.

  2. The receptor may be inside the nucleus of a target cell.

  3. The unbound steroid receptors are quickly recycled by lysosomes.

  4. Steroid receptors are typically bound to the external surface of the nuclear membrane.

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TLS Online TPP Program

#Question id: 3857

#3. Fundamental Processes

The CAAT box is usually located near the position:
TLS Online TPP Program

#Question id: 3858

#3. Fundamental Processes

The 5' methyl guanosine caps added during RNA chain elongation performs what function?

1. prevents degradation by nucleases 

2. are recognized by protein factors

3. are used to identify the type of RNA
TLS Online TPP Program

#Question id: 3859

#3. Fundamental Processes

Polyadenylation is:
TLS Online TPP Program

#Question id: 3860

#3. Fundamental Processes

Guide RNAs:
TLS Online TPP Program

#Question id: 3861

#3. Fundamental Processes

_ are sequences that are removed from primary transcripts, and _ are sequences that remain present in mature mRNA molecules.
TLS Online TPP Program

#Question id: 3863

#3. Fundamental Processes

Introns in nuclear pre-mRNAs are excised by: