A researcher named Erwin Chargoff determined the relative proportion of the different nucleotides in different species and came up with what we know today as Chargoff’s rule. What is the percentage of Cytosine, if the percentage of Guanine is 24%? What would be the percentage of Adenine in the same species?

____ favors habit and tradition over experimentation and invention.

Drosophila have large chromosomes in their salivary glands called polytene chromosomes. When these chromosomes are exposed to the hormone, ecdysone (the molting hormone), regions of the chromosome form chromosomal puffs. What affect does chromosomal puffing have on transcriptional activity of genes in this region (i.e. is there more or less transcription in these regions)?   In class we talked about a few experiments testing hypotheses regarding the relationship between the state of chromosome and the amount of transcription taking place. What conclusions were drawn from these experiments?

Polynesian Oro statues are to abstraction as bronze heads of Oni from Nigeria are to  ____ .

The story of art is a story of progress in technical proficiency.

63) What type of photoreceptor cell perceives color?

47) What is responsible for keeping blood vessels partially constricted at all times?

Knowing the exact meaning of prehistoric art is impossible.  With that said, art historians know definitively that The Venus of Willendorf was ____ .

61) Which of the following parts of the eye refract light to focus it on the retina?

In one or two sentences, compare and contrast the function of transcriptional activator proteins and general transcription factors.