Question

Why do organisms need cells going through mitosis? What does the cell need to do before dividing? Two identical copies of the DNA-containing structures are held together at a centromere. Each copy is called a _ and the whole structure is called a . The spindle fibers attach on the chromosomes at a structure called . Name the stages of mitosis in the order that they occur: Name the stage of mitosis in which each of the following occurs: Division of the cytoplasm: Spindle fibers attach to the chromosomes: The nuclear membrane breaks down: The chromosomes line up in the middle of the cell: Sister chromatids separate: A nuclear membrane starts to form around each set of chromosomes: Look at Figure 1 (presentation week 8 Mitosis, slide #13), name the stages: A: B: C: D:

          Why do organisms need cells going through mitosis?
What does the cell need to do before dividing?
Two identical copies of the DNA-containing structures are held together at a centromere. Each copy is called a _________________ and the whole structure is called a ________________________.
The spindle fibers attach on the chromosomes at a structure called ________________.
Name the stages of mitosis in the order that they occur:
Name the stage of mitosis in which each of the following occurs:
Division of the cytoplasm:
Spindle fibers attach to the chromosomes:
The nuclear membrane breaks down:
The chromosomes line up in the middle of the cell:
Sister chromatids separate:
A nuclear membrane starts to form around each set of chromosomes:
Look at Figure 1 (presentation week 8 Mitosis, slide #13), name the stages:
A:
B:
C:
D:

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Added by Andrew M.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

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Solved by Expert Madhur L

03/26/2023

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Organisms need cells going through mitosis to grow, repair damaged tissues, and maintain the proper number of cells in the body. Show more…

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Why do organisms need cells going through mitosis? What does the cell need to do before dividing? Two identical copies of the DNA-containing structures are held together at a centromere. Each copy is called a _________________ and the whole structure is called a ________________________. The spindle fibers attach on the chromosomes at a structure called ________________. Name the stages of mitosis in the order that they occur: Name the stage of mitosis in which each of the following occurs: Division of the cytoplasm: Spindle fibers attach to the chromosomes: The nuclear membrane breaks down: The chromosomes line up in the middle of the cell: Sister chromatids separate: A nuclear membrane starts to form around each set of chromosomes: Look at Figure 1 (presentation week 8 Mitosis, slide #13), name the stages: A: B: C: D:

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Transcript

00:01 Hello students here we have been asked few questions and the first question is why do organisms need cells undergoing mitosis? we know that organisms need mitosis for growth and rapier because growth and repair occurs only when cells grow in number.

00:39 While repair occurs when there is a damage in cells or tissues, then the cells undergo mitosis to repair the damage cells.

00:57 So mitosis is required by organisms for growth and repair.

01:04 The second question asks is, what does the cells do before dividing? before dividing cells replicate their dna.

01:28 This dna content, they make this dna content double because after that they undergo mitosis in which two daughter cells are formed which each daughter's cell gets one set of chromosome each which is the same as the parent cell.

01:50 So before dividing the parent cell doubles it is dna by replicating its dna.

01:59 The third question asked is two identical dna containing structures are held together at centromere.

02:12 And each copy is called as sister chromated.

02:23 So each copy, sister chromated, which are held at this.

02:26 Centromere, each copy is known as system chromatic.

02:36 And this whole structure is called chromosome.

02:45 So in this question there were two questions asked what are those two identical dna copy, dna containing structures which are held at.

02:54 Central mirror are called and the whole structure is called what? so the first one is sister chromatid and the second one is chromosome...

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