Question

A student upon observing a permanent slide of binary fission in Amoeba drew the following diagram. Identify the fault in the diagram:

• A. Size of daughter cell to be formed is not appropriate.
• B. Constriction has appeared before nuclear division.
• C. Constriction is not equally deep on the either side.
• D. None of the above.

Answer 1

The correct option is B Constriction has appeared before nuclear division.

Organisms such as Amoeba reproduces by asexual reproduction through the mode binary fission. First, the Amoeba cell undergoes nuclear division and replicates into two nuclei. The two nuclei divide and move in opposite directions in the parent cell. The cell then produces proteins and nutrients in preparation for binary fission.

In the given picture, we can see that the constriction for the process of binary fission has already begun, but the nucleus remains intact. That is incorrect.

Hence, the correct option is B.