Which modification on a lysine is involved in transcription, nuclear transport, apoptosis, and cell cycle progression, but not protein degradation?

Standard DNA bases are typically in the ________ conformations in the double helix.

Tyrosine kinases phosphorylate target proteins, which can now interact with proteins that have ______ domains.

You discover a protein that has a β-helix, an EF-hand, and a RING finger. You would expect this protein to

A hydrophobic amino acid would most likely be found ________ in a soluble protein, and ________ in the transmembrane portion of a transmembrane protein.

If guanine makes up 40% of the nucleotides in a DNA sample, what percentage of the nucleotides will be adenine?

RNA stability results from all of the following EXCEPT

DNA with a higher GC content has a higher Tm because

A nucleotide as found in DNA consists of

The number of times DNA strands have to cross one another to be fully separated is its ________, and the supercoiling of DNA is its ________.