Question

If you were to treat sperm precursor cells with an agent that completely destroys microtubules (and ensures that they don't reform) at the start of metaphase I, how would this affect meiosis?

	A.	This would prevent kinetochores from forming on either side of the centrosome during meiosis I.
	B.	Meiosis I would be interrupted, but meiosis II would proceed normally, since microtubules are not required during this stage.
	C.	Homologous chromosome pairs would not line up at the cell's center, and the rest of meiosis would not proceed normally.
	D.	This would only affect the separation of homologous chromosomes during anaphase I, but would not cause any changes to telophase I or subsequent cell division.

Answer 1

Option c

First option is incorrect because kinetochores will be formed but Kinetochore microtubules will not be formed which are responsible for the attachment of chromosomes at the spindle apparatus.

Second statement is incorrect because both meiosis 1 and meiosis 2 will be interrupted and in the end abnormal Gametes will be formed.

Third statement is correct because lining of chromosomes in the middle of the Cell at equatorial plate will not take place And the whole Meiosis will be disrupted.

Fourth statement and correct because subsequent stages after metaphase 1 Will be disrupted.

Please rate high.