A Mutation Causes Difficulty in the Separation of Sister Chromatids

question 122

Multiple Choice

A mutation causes difficulty in the separation of sister chromatids during mitosis.Based on what you have read, the most likely cause of this phenomenon is that

• A) the histones are too positively charged.
• B) the histones are not sufficiently positively charged.
• C) cyclin levels are inappropriate.
• D) there is a defect in the spindle apparatus.
• E) there is a defect in the cell wall.

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Definitions:

Haemophilus Influenzae

A type of bacteria that can cause various infections, particularly in children, including pneumonia, meningitis, and ear infections.

Gram-positive

Refers to bacteria that retain the color of the crystal violet stain used in the Gram staining method, indicating a thicker peptidoglycan cell wall.

Gram-variable

Refers to bacteria that do not consistently stain as gram-positive or gram-negative because of variability in the structure of their cell wall.

Clostridium Tetani

A bacterium that causes tetanus, characterized by muscle stiffness and convulsions, contracted through wound infections.