Assume That You Were Growing Cells in Culture and Had

question 33

Essay

Assume that you were growing cells in culture and had determined the cell-cycle time to be 24 hours. You introduce ³H thymidine and prepare autoradiographs of metaphase chromosomes after 48 hours. Of the chromosomes that are labeled, you expect two classes: one class that had completed one S phase in the label, and a second class that had completed a cellular division and an additional S phase in the label. Draw the DNA (double-stranded) labeling pattern for each chromosome that you would expect to find in these two types of metaphase chromosomes. (Use a broken line {- - -} for labeled single strands of DNA and a solid line for unlabeled single strands of DNA.)
(a) metaphase chromosome having replicated once in label
(b) metaphase chromosome having gone through two S phases in label

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Definitions:

Polychronic Cultures

Societies that prefer to engage in multiple tasks and activities simultaneously, valuing flexibility and the involvement of many people.

Cultural Intelligence

The ability to understand, respect, and work effectively with individuals from diverse cultural backgrounds.

Proxemics

Delving into the utilization of space by humans and the impact that the level of population density exerts on their behavioral patterns, communicative exchanges, and social interactions.

Physical Space

The tangible, three-dimensional environment in which objects and events occur and interact.