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Nimfa-mama [501]
3 years ago
6

You are observing a sample of cells in the lab to determine why they did not divide properly. You notice that the chromosomes ar

e lined up in the middle of the cell, and the spindle fibers have extended towards them, but have not attached. What could be damaged?
Biology
1 answer:
Mandarinka [93]3 years ago
3 0

Answer:

The kinetochore of the chromosomes

Explanation:

<em>What could be damaged that is hindering the spindle fibers from attaching to the chromosomes are the kinetochores of the chromosomes.</em>

At the metaphase stage of the cell division, the chromosomes align at the equator of the cell and the spindle fibers engage each chromosome at a region known as the kinetochore.

The kinetochore is made up of complex proteins and lies around the centromere region of the chromosome. The microtubules of the spindle fibers attach to this region during the metaphase stage.

<u>If the kinetochore is damaged, it means the spindle fiber will not be able to attach to the chromosome. </u>

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If the researchers replaced the bacterial proton pump with a proton pump that was activated only by atp then less ATP would be produced when the light is on because no proton gradient would be available to produce ATP.

<h3>What is proton gradient ?</h3>

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Peter Mitchell, who in 1961 made the initial suggestion, was given the Nobel Prize for his efforts in 1978.

To learn more about proton gradient from the given link:

brainly.com/question/28046848

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