A 3.7 cm long wire with a diameter of 1.43 cm carries a steady current of 5.27 A. The resistivity of copper is 1.70 ✕ 10−8 Ω · m. a) What is the resistance of the wire? [ans1] b) What is  the potential difference (in µV) between two points on the wire that are 3.70 cm apart? [ans2]

Telomerase uses _____ to synthesize new DNA.

Alterations of chromatin of DNA structure that are stable and inheritable in offspring via DNA methylation or alteration of histone proteins are referred to as _____ changes.

What is the RNA sequence transcribed from the DNA shown below?  

The following diagram represents the transcription unit and corresponding RNA transcripts as “Christmas-tree-like” structures captured in the electron micrograph.     Which of the following statements CORRECTLY describes the orientation of the DNA and RNA transcript? (Select all that apply.)

What type of bonds does DNA ligase create between adjacent nucleotides?

Meier-Gorlin syndrome results from flaws in the licensing of origins in replication. Which is the most likely effect on DNA replication in effected individuals?

For a given gene, both strands of a DNA are used as a template simultaneously from one initiation point when which of the following molecules is synthesized?

Which of the following molecules is synthesized using nucleotides containing the bases adenine, guanine, cytosine, and uracil?

Prokaryotic promoters contain the sequence TATAAT at a position _____ from the transcription start.