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Arisa [49]
3 years ago
9

A cultured cell line appears to be having trouble surviving. You find that the cells do not appear to have normal chromosome sep

aration. You decide to check for the presence of a mutated protein. Which of the following would your best target for analyzing chromosome separation?
a. Actin
b. Melanin
c. Tubulin
d. Shugoshin
Biology
1 answer:
goldenfox [79]3 years ago
6 0

Answer:

c. Tubulin

Explanation:

Tubulin protein is polymerized to form the cylindrical structures of microtubules. Microtubules form the spindle apparatus during cell division. The spindle microtubules become attached to the kinetochores of chromosomes and mediate the alignment of chromosomes at the equator of cells during metaphase. The shortening of spindle microtubules is responsible for the movement of sister chromatids during anaphase. The same event also moves the homologous chromosomes during anaphase-I.

Any failure in the formation of the spindle apparatus would not allow the proper separation of chromosomes. Therefore, the cell with abnormal chromosome separation might have a faulty or no tubulin.

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Steroid hormones bind to receptors in the nucleus of their target cells. cannot diffuse through cell membranes. remain in circul
goldfiish [28.3K]

Answer:

The correct answer is - bind to receptors in the nucleus of the target cells.

Explanation:

Steroid hormones are the chemical compounds that are a member of the class of steroids and act as hormones. These hormones are released by the adrenal cortex, testes and ovaries in the body placenta also release steroid hormone during pregnancy.

The steroid hormones do not bind to the plasma membrane of the target cell but binds to the receptors present on the nucleus of the cell. These cells pass through the cell and reach the nucleus and bind to it or gene to produce proteins for the biological process.

Thus, the correct answer is - bind to receptors in the nucleus of the target cells.

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3 years ago
Which sensory organ would best detect the movement of a rabbit?<br><br> A.<br> B.<br> C.<br> D.
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3 0
2 years ago
Select the statements that accurately describe endocytosis. The cell membrane pinches off to form an extracellular vesicle joine
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