Question

What would happen if dna replication occurred again before meiosis 2?

Answer 1

If DNA replication occurred again before meiosis II, it would disrupt the normal process of meiosis and could lead to genetic abnormalities in the offspring.

Step-by-step explanation:

During meiosis, DNA replication occurs before meiosis I and does not occur again before meiosis II. If DNA replication occurred again before meiosis II, it would result in an additional doubling of the genetic material and an increased number of chromosomes in the resulting cells. This would disrupt the normal process of meiosis and could lead to genetic abnormalities in the offspring.

Answer 2

Meiosis is characterized by two cell divisions in a row (meiosis 1 and meiosis 2) that happen after DNA replication, it results in four gametes with N chromosomes.

If DNA replication occurs again between the meiosis 1 and meiosis 2, so the final result will be different. It will be four cells with 2N chromosomes (replication gives 4N, than meiosis give 2 cells with 2N chromosomes, replication gives again 4N cells, then finally meiosis 2 gives four cells with 2N chromosomes). So it will not result to gametes with N chromosomes which can fusion with another gamete of opposite sex to give a 2N zygote.