In this post, I’m going to talk about the Biology experiment for this week. The experiment for this week is about the cell division and the analysis of growth. In this experiment, we used onion root tip for observing the cell cycle. We have to plant the onions before 1 week to the experiment. Here is the photo which I have taken for the onions which owned by my group. We have drawn some faces on the onions for fun.
Okay, be seriously. Here is the procedure which we have done for making a onion root tip sample. First, We have to cut off the root tip and dip it into the Carnoy’s s solution for one day. The purpose of this step is for fixing the situation of cell’s growing. After this step, we have to soak the root tip into 1 M HCL solution for soften the cell tips. In order to examine cells in the tip of an onion root, a thin slice of the root is placed onto a microscope slide and stained so the chromosomes will be visible.
Although slicing the onion root captures many cells in different phases of the cell cycle, the teacher told us that the cell cycle is a continuous process. Scientists have divided the process into 5 phases: (1) Prophase (2) Prometaphase (3) Metaphase (4) Anaphase (5) Telophase.
Okay, be seriously. Here is the procedure which we have done for making a onion root tip sample. First, We have to cut off the root tip and dip it into the Carnoy’s s solution for one day. The purpose of this step is for fixing the situation of cell’s growing. After this step, we have to soak the root tip into 1 M HCL solution for soften the cell tips. In order to examine cells in the tip of an onion root, a thin slice of the root is placed onto a microscope slide and stained so the chromosomes will be visible.
Although slicing the onion root captures many cells in different phases of the cell cycle, the teacher told us that the cell cycle is a continuous process. Scientists have divided the process into 5 phases: (1) Prophase (2) Prometaphase (3) Metaphase (4) Anaphase (5) Telophase.
1 comment:
This is great info to know.
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