To Study Chromosome Movement During Anaphase in Mammals, You Have

question 16

Short Answer

To study chromosome movement during anaphase in mammals, you have injected fluorescently labeled tubulin subunits into cells such that microtubules can be seen under a fluorescence microscope. You then use a relatively strong laser beam to bleach the fluorescent dyes in a limited area of a metaphase cell, as indicated in the schematic diagram below, and follow the progression of mitosis under the microscope by time-lapse imaging. You then use the images to measure the change in distance between various components, and plot the results in the graph below. Answer the following question(s) based on these results.

-Based on the results from your experiment, which force is dominant in chromosome movement in this cell: polar ejection force (E), microtubule flux (F), or kinetochore microtubule plus-end depolymerization (P)? Write down E, F, or P as your answer.

---

Definitions:

British West Indies

A term historically used to describe the islands in the Caribbean that were part of the British Empire, including Jamaica, Barbados, and Trinidad and Tobago.

Indentured Servants

Workers who agreed to labor for a certain period of time, typically without pay but in exchange for passage to a new country or other benefits, widely used in the American colonies.

Tobacco Workers

Individuals employed in cultivating, harvesting, and processing tobacco leaves, often experiencing specific labor conditions and health risks associated with the industry.

Religious Liberty

The freedom to practice and observe one's religion without undue government interference.