Which of the following structures disappear d | vedclass

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(B) During the prophase stage of mitosis, the cell undergoes several structural changes to prepare for chromosome segregation.$1$. The chromatin conde

Vedclass · Accepted Answer

Nuclear envelope and nucleolus

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(B) During the prophase stage of mitosis, the cell undergoes several structural changes to prepare for chromosome segregation.$1$. The chromatin condenses into compact mitotic chromosomes.$2$. The nuclear envelope (nuclear membrane) begins to disintegrate.$3$. The nucleolus disappears as ribosomal $RNA$ synthesis ceases.$4$. The Golgi complex and endoplasmic reticulum also tend to disappear or become less distinct.Therefore, the nuclear envelope and nucleolus are the primary structures that disappear during the early stages of mitosis.

Column-$I$	Column-$II$
$1$. Metaphase	$p$. Chromosomal material condensed
$2$. Prophase	$q$. Nucleolus reform
$3$. Anaphase	$r$. Spindle fibre attach to kinetochores
$4$. Telophase	$s$. Chromatids move to opposite poles

Which of the following structures disappear during the $M$ phase of mitosis?

Similar Questions

Anaphase Promoting Complex $(APC)$ is a protein degradation machinery necessary for proper mitosis of animal cell. If $APC$ is defective in a human cell,which of the following is expected to occur?

Match the following:
Column-$I$ Column-$II$
$1$. Metaphase $p$. Chromosomal material condensed
$2$. Prophase $q$. Nucleolus reform
$3$. Anaphase $r$. Spindle fibre attach to kinetochores
$4$. Telophase $s$. Chromatids move to opposite poles

How many types of spindle fibers are formed during cell division in eukaryotic cells?

All chromosomes align at the metaphase plate during which phase of mitosis?

During which phase do kinetochores attach to spindle fibers?

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