Which transcriptional element location is upstream of the transcription start site?

The nurse cares for a client diagnosed with an anterior wall MI.  The nurse notes a new holosystolic murmur at the apex during systole.  Which does the nurse suspect?  

What ensures that the correct amino acid is placed on the proper tRNA?

Calculate the dilution of tube F in the following picture:

In Drosophila sexual differentiation, a fly that produces functional Sex-lethal (Sxl) protein will be what sex?

What is meant by the host range of a bacteriophage? Is it typically selective or non-selective?

True or False. Poly-A polymerase (PAP) adds about 200 adenines at the 3’ end of mRNA based off of a poly-T complementary template.

In acute coronary syndrome, ST depression suggests the presence of which condition?

True or False. The open reading frame includes codons that will be translated into protein.

Predict the level of expression of a prokaryotic mRNA with the ribosome binding site 12 nt from the start site.