Which of the following is (are) associated with most polyadenylation events?

a. cleavage of the 5´ end of the RNA molecule

b. an assembly of a large, multiprotein complex

c. the AAUAAA site upstream of where polyadenylation will occur

d. a GU-rich or U-rich region near the cleavage site

e. slow addition of A residues followed by rapid addition of 200 to 250 more A residues

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#Question id: 23160

#Unit 13. Methods in Biology

Texas is a fluorescent dye which emits a colour?

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#Question id: 751

#Unit 1. Molecules and their Interaction Relevant to Biology

The effect of alkali is to change the ___________________ of the DNA structure:

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#Question id: 850

#Unit 1. Molecules and their Interaction Relevant to Biology

The experimental inverse of protein structure prediction, has provided insights into protein folding and stability. Protein design attempts to construct an amino acid sequence that will form a structure such as a sandwich of β sheets or a bundle of α helices;

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#Question id: 26532

#Unit 3. Fundamental Processes

Sp1 (Mr  80,000) is a transcription activator for a large number of genes in higher eukaryotes. Its DNA binding site, the GC box having consensus sequence

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#Question id: 31214

#Unit 4. Cell Communication and Cell Signaling

In which of the following mutants, all cells die by apoptosis?