Identify a DNA polymerase substrate.DNA pol substrate.png 

The TATA box/TATA-box binding protein complex is shown below. The TATA-box-binding protein is in blue (backbone trace). The TATA box, within the DNA double helix, is in CPK spacefill (A, Cyan; T, yellow). Answer Yes or No to the following questions. TBP_TATAbox_letters.png Answer choices: Yes No Question Answer Is the TATA box palindromic? [BLANK-1] Is the TATA box on the sense strand? [BLANK-2]

Identify the step in semi-discontinuous DNA replication that does not require energy input.

Click on the DNA polymerase substrate whose de novo synthesis is not directly impaired by folic acid deficiency.

Classify the fundamental unit of the nucleic acid starred in the figure below. ATG.png 

Inactivation of the 3’-5’ exonuclease activity of DNA polymerase III disables the proofreading mechanism of this enzyme. The result will be

Both RNA and DNA can form double helices. Propose the most likely chemical component of RNA that influences it to form a right handed A helix as opposed to the right handed B helix, which is the most common form of DNA.

Inhibition of which of the following enzyme activities is most likely to result in the build-up of Okazaki fragments?

Meselson and Stahl designed an experiment that distinguished newly synthesized DNA from parental DNA. Cells grown in media containing 15N ammonium were switched to 14N-containing media and grown for one generation. The DNA was isolated, heat-denatured, and subjected to ultracentrifugation. Two equal peaks of 14N and 15N DNA were observed (solid lines). They then repeated the experiment except measuring the DNA after two generations (dashed lines). Identify the dashed-line graph that is most consistent with the distribution of 14N- and 15N-labeled DNA after two generations of growth in the presence of 14N-ammonium.Meselson and Stahl hyp.png   

This is the first in the order of succession after an individual dies and must be resolved before anything else takes place.