Can i please get an in depth easy to follow explanation of mitosis. Which explains what going on with chromatids and chromosomes and everything really. Id really appreciate it as i’m struggling. Please make it a level biology friendly. Also within this image which part is the chromatid/ chromosome. Thanks again

Can i please get an in depth easy to follow explanation of mitosis. Which explains what going on with chromatids and chromosomes and everything really. Id really appreciate it as i’m struggling. Please make it a level biology friendly. Also within this image which part is the chromatid/ chromosome. Thanks again

Answer:

see below for figure exp.

Explanation:

A cell with four chromosomes (found as two pairs) is seen in the image below; the pink and blue chromosomes were inherited from the mother and the father, respectively. Every chromosome that the father supplied has a matched chromosome that came from the mother. A homologous pair is made up of these comparable chromosomes, which are similar in size and structure (also referred to as bivalents). Typically, the DNA sequences of homologous chromosomes do not match perfectly.

Mitosis is a type of cell division that produces daughter cells identical to the parent cells. It occurs in eukaryotic cells and is an important part of the cell cycle process necessary for development, tissue regeneration, and growth.

Before mitosis, the cell needs to prepare for division. This involves the DNA condensing into chromosomes, which is the key step. Chromosomes are made of two identical sister chromatids and these chromatids are made of double-stranded DNA.

Mitosis itself has 4 main phases:

Interphase

Prophase

Metaphase

Anaphase

Telophase

Interphase is the gap between mitosis. The cell grows and copies its genetic material.

Prophase is the first stage of mitosis. During this phase, the chromosomes condense further, making them visible under a microscope. The nuclear envelope around the genetic material also breaks down.

Metaphase is the next stage, during which time the spindle fibers connect to the chromosomes, aligning them in the center of the cell.

Anaphase begins when the chromatids, the two identical strands of the chromosome, are pulled apart and move towards the opposite poles of the cell, into the two groups of daughter cells.

Telophase is the final stage of mitosis and is when the cell starts to reform a nuclear membrane, the chromatids turn back into chromosomes and the genetic material unravels and relaxes back into short strands.

In the picture, the two chromatids of the chromosome that can be seen would be the two lines extending from the middle, which are connected at the end. The thicker middle part of the structure is the chromosome, which is made up of the two chromatids.

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