Question

Which of the following is not correct for the shortest phase of Karyokinesis in mitosis?
(1) Centromeres split and chromatids separate
(2) Daughter chromosomes move to opposite
poles
(3) Reformation of ER and Golgi apparatus
(4) Number of chromosomes become double
in cell​

Answer 1

Answer:

★ Shortest Phase of Karyokinesis in mitosis is " Anaphase " .

So ;

Centromere and chromatids seperate ( Correct )

Daughter chromosome move to opposite poles ( correct )

Number of chromosome becomes n to 2n . as Daughter chromosome seperates .

BUT ;

REFORMATION of ER and Golgi body

Happens in Telophase .

So ; C is incorrect .

Answer 2

Answer:

The answer is (3), Reformation of ER and Golgi apparatus.

Explanation:

The shortest phase of karyokinesis is Anaphase.

Anaphase:

• Anaphase, in mitosis is the stage of chromosome separation at the centromere. A centromeric division occurs and the two sister chromatids migrate in opposite poles.
• Spindle fibers aid in the movement of chromatids.
• Cell organelles such as Golgi bodies and other ER do not reappear in the anaphase stage but after cytokinesis.