What structure is responsible for moving the chromosomes during mitosis?

1 answer:

3 0

Spindle fibers extend from centrioles to kinetochores and are responsible for moving chromosomes around during the mitosis

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What muscle forms the labia of the mouth and controls most lip movement

almond37 [142]

Answer:

The correct answer will be-Orbicularis oris muscle

Explanation:

The muscle which is present in the mouth is known as the oribicularis oris which consists of various muscular fibres in a different direction.

The oris muscle is derived from the other facial muscles inserted into the lips and join with the lips controlling the movement of the lips. The muscle controls the movement by pulling down the corners of the mouth and the lips along with other muscles like the mentalis, the triangularis and the risorius.

Thus, Orbicularis oris muscle is the correct answer.

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3 years ago

Which factor could contribute to an overall population decrease? A) decreased birth rate B) increased immigration C) decreased i

Monica [59]

A) decreased birth rate

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3 years ago

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HELPPP!

Vinvika [58]

Answer:

A cell that has duplicated chromosome cannot be in G1 phase.

Explanation:

G1, G2 and S phase are the divisions of the interphase i.e. the resting phase of the cell cycle.
A cell cycle has two phases; interphase and M-phase.
During interphase the cell grows and in M-phase it divides.
G1 is the Gap between the M-phase and the S-phase.
G2 is the gap between the S phase and M phase.

DNA replication is confined to the S part of interphase.
Since G1 phase comes before the S phase , we can say that a cell that has duplicated chromosome cannot be in G1 phase.