Question

mitosis

once a cell ______ itself for division in ____, it is ready for____, or the m phase, where the cell begins to divide itself. this division starts with the ______. recall that dna has already been copied in the nucleus during the s stage of interphase.

as mitosis begins, chromosomes from the dna replication appear as two sister connected chromatids attached at a ______ ____ called the____. in mitosis these two ____ ____ separate to form two sets of ______. two daughter nuclei are then formed, each with one set of chromosomes.

each of these events in mitosis occurs in its own subphase. mitosis has four distinct subphases:
______, ____, ____, and ______.

Explanation:

Analizar la preparación celular

Using the Cell Cycle and Interphase Stages knowledge points
La célula se prepara para la división durante la interfase.

$$ \text{Preparación} ightarrow \text{prepares} $$

$$ \text{Etapa de preparación} ightarrow \text{interphase} $$

Identificar la fase M y el inicio

Using the Mitosis knowledge point
La fase M corresponde a la mitosis, que comienza con la división del núcleo celular.

$$ \text{Fase M} ightarrow \text{mitosis} $$

$$ \text{Inicio de la división} ightarrow \text{nucleus} $$

Estructura de los cromosomas

Using the Mitosis knowledge point
Las cromátidas hermanas se unen en una región central especializada.

$$ \text{Región de unión} ightarrow \text{centromere} $$

Separación de cromátidas

Using the Mitosis Phases knowledge point
Durante la mitosis, las cromátidas hermanas se separan para formar cromosomas individuales.

$$ \text{Estructuras que se separan} ightarrow \text{sister chromatids} $$

$$ \text{Resultado de la separación} ightarrow \text{chromosomes} $$

Identificar las subfases de la mitosis

Using the Mitosis Phases knowledge point
La mitosis se divide en cuatro fases consecutivas: profase, metafase, anafase y telofase.

$$ \text{Subfases} ightarrow \text{prophase, metaphase, anaphase, telophase} $$

Answer:

Once a cell <blank>prepares</blank> itself for division in <blank>interphase</blank>, it is ready for <blank>mitosis</blank>, or the M phase, where the cell begins to divide itself. This division starts with the <blank>nucleus</blank>. Recall that DNA has already been copied in the nucleus during the S stage of interphase.

As mitosis begins, chromosomes from the DNA replication appear as two sister connected chromatids attached at a <blank>central region</blank> called the <blank>centromere</blank>. In mitosis these two <blank>sister chromatids</blank> separate to form two sets of <blank>chromosomes</blank>. Two daughter nuclei are then formed, each with one set of chromosomes.

Each of these events in mitosis occurs in its own subphase. Mitosis has four distinct subphases: <blank>prophase</blank>, <blank>metaphase</blank>, <blank>anaphase</blank>, and <blank>telophase</blank>.