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a. Describe binary fission - VCE - SSCE Biology - Question 1 - 2009 - Paper 1
Question 1
a. Describe binary fission. Binary fission is a form of asexual reproduction commonly occurring in prokaryotic organisms, such as bacteria. In this process, a singl... show full transcript
Worked Solution & Example Answer:a. Describe binary fission - VCE - SSCE Biology - Question 1 - 2009 - Paper 1
Step 1
Explain at which labelled point (P, Q, R, V, W) in the cycle image D would be found.
Answer
In Image D, the appearance of chromosomes suggests that the cell is in the late prophase of mitosis. Thus, it would be found at point 'P', where the chromosomes condense and become visible, preparing for alignment during metaphase.
Step 2
Explain why apoptosis sometimes occurs during the cell cycle represented in the above diagram.
Answer
Apoptosis, or programmed cell death, can occur during the cell cycle for several reasons. One reason is that it helps eliminate cells with damaged DNA that could lead to cancerous growths. Additionally, apoptosis is also a critical mechanism during development and tissue homeostasis, allowing for the removal of excess or malfunctioning cells to maintain healthy cellular function.