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What event occurs in an organism when a chromosome is not copied correctly during meiosis?

When a chromosome is not copied correctly during meiosis, it can lead to genetic mutations or chromosomal abnormalities in the resulting gametes. This can result in offspring with genetic disorders or developmental problems. In some cases, it can also lead to infertility or miscarriages.


In which stage of meiosis is the chromosome number halved?

The chromosome number is halved during the first stage of meiosis, known as meiosis I.


How is the chromosome number halved during cell division: mitosis or meiosis?

The chromosome number is halved during cell division in meiosis, not mitosis.


What does the chromosome number do during meiosis?

During meiosis, the chromosome number decreases by half. For example, if a human cell with 46 chromosomes were to undergo meiosis, the result would be four daughter cells with 23 chromosomes in each.


When do chromosomes replicate during meiosis?

Chromosomes replicate during the S phase of interphase, before meiosis begins. This ensures that each chromosome consists of two sister chromatids, which are then separated during the meiotic divisions to produce haploid cells.


How does the significance of meiosis maintained the chromosome number?

No. Meiosis results in halving of chromosome number. Chromosome number after one round of meiosis is half that of original chromosome number. Generally, meiosis takes place during gamete formation. So when two gametes fuse, they lead to restoration of the chromosome number. Hence chromosome number can be maintained in sexually reproducing organisms.


During meiosis the chromosome number does what?

During meiosis, the chromosome number decreases by half. For example, if a human cell with 46 chromosomes were to undergo meiosis, the result would be four daughter cells with 23 chromosomes in each.


What stage of meiosis is the chromosome number reduced?

In Anaphase I


Crossing over occurs during which phase of meiosis?

Crossing over occurs during Prophase I of meiosis.


Is meiosis necessary before fertilization Can occur?

Yes, meiosis is necessary before fertilization can occur because meiosis is the process by which gametes (eggs and sperm) are formed. During meiosis, the cell's chromosome number is halved, so that when the egg and sperm fuse during fertilization, the resulting zygote will have the correct number of chromosomes.


What happens to the chromosome numbers during meiois?

During meiosis, the chromosome number doubles because the cells replicate their DNA and split into two cells in meiosis I and in meiosis II, they replicate DNA and split once again, to form four cells.


When do chromosome duplicate themselves during mitosis?

Chromosomes duplicate during the S phase of interphase, which occurs before mitosis. Each chromosome replicates to form two identical sister chromatids that are held together at the centromere. These sister chromatids are then separated and pulled to opposite poles of the cell during mitosis.