Which of the Following Best Describes How Chromosomes Move Toward

question 53

Multiple Choice

Which of the following best describes how chromosomes move toward the poles of the spindle during mitosis?

• A)The chromosomes are "reeled in" by the contraction of spindle microtubules.
• B)Motor proteins of the kinetochores move the chromosomes along the spindle microtubules.
• C)Nonkinetochore spindle fibres serve to push chromosomes in the direction of the poles.
• D)The chromosomes are "reeled in" by the contraction of spindle microtubules, and motor proteins of the kinetochores move the chromosomes along the spindle microtubules.
• E)The chromosomes are "reeled in" by the contraction of spindle microtubules, motor proteins of the kinetochores move the chromosomes along the spindle microtubules, and nonkinetochore spindle fibres serve to push chromosomes in the direction of the poles.

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Definitions:

Vastus Lateralis

A muscle located on the side of the thigh, part of the quadriceps group, primarily involved in extending the knee.

Pectineus

A muscle in the thigh engaged in hip flexion and adduction, contributing to the movement of the leg towards the body's midline.

Gluteus Medius

A muscle located on the outer surface of the pelvis, involved in the rotation and abduction of the thigh.

Vastus Lateralis

A muscle located on the side of the thigh, part of the quadriceps group, responsible for extending the knee.