Chapter 20 - Microtubules

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Daughter cells

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Biology

14 Terms

1

Daughter cells

________ are created during cytokinesis through cleavage.

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2

Microproteins Bimc

________, CENP- E, and cytosolic dynein move into and stay in all spindles.

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3

GTPases

________ have a branch of tubulin that belong to the same family, and those tubulins polymerize into microtubules which are small hollow cylindrical structures which a diameter of 25 nm.

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4

dyneins

Dynactin links ________ to their cargoes which consist of vesicles and chromosomes.

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5

Dynactin

________ is a multiprotein complex that also works to bind microtubules.

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6

Kinesins

________ work as dimers with head domains that bind microtubules and ATP and tail domains that bind other cargo or vesicles.

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7

Protofilaments

________ are formed by dimeric aB- tubulin which interact with end to end, and ________ are laterally associated with microtubules.

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8

structural polarity

The (+) of microtubules lose and gain subunits, and microtubules have ________.

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9

Drugs

________ like colchicine and taxol can help with cancer as they disrupt microtubules and provide an antimitotic effect.

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10

MAPs

________ can control cytosolic microtubule depolymerization.

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11

microtubule dynamics

Both ________ and microtubule motors are needed for chromosomal transport to the opposite poles at anaphase.

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12

Mitosis

________ is the process of replicated chromosomes being separated and partitioned into two daughter cells.

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13

Motor protein

________- mediated interactions help establish the orientation of spindles.

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14

Kinesins

________ move cargo to the (+) side and dyneins move cargo to the-) (side.

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