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What happen when something goes wrong in meiosis?
A mutation.
Does DNA replication happen before or during Meiosis?
It happens during interphase of the cell cycle.
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.
What happens during the first division of meiosis that does not happen in meiosis?
In Meiosis I: Separates homologous chromosomes In Meiosis II: Separates sister chromatids
What happen to chromosomes during meiosis?
half of each parents' chromosomes go to the offspring
Why must cells undergo meiosis before they can fuse together to produce another organism?
Meiosis produces cells with half of the DNA of a normal cell so that when two cells that have gone through meiosis (like sperm and egg) are joined, the cell formed has the normal amount of DNA. If meiosis didn't happen each new organism would have twice as much DNA as it's parents.
What happens in meiosis that does not happen in meiosis 2?
DNA is copied in meiosis 1.
What would happen if crossing over during meiosis didn't happen in humans?
If crossing over didn't happen during meiosis in humans, the haploid daughter cells would all have the same genes. The crossing over creates variation and causes each daughter cell to have slightly different genes.
Where does non disjunction occur?
Nondisjunction occurs during meiosis or mitosis when chromosomes fail to separate properly during cell division. In meiosis, this can happen during either anaphase I or anaphase II, leading to gametes with an abnormal number of chromosomes. If such gametes participate in fertilization, it can result in aneuploidy in the resulting organism, such as Down syndrome. In mitosis, nondisjunction can lead to mosaicism or tumors due to uneven chromosome distribution in daughter cells.
What happens in meiosis 1 that does not happen in meiosis 2?
DNA is copied in meiosis 1.
What would happen during a plants life cycle if meiosis did not occur?
We'd die from lack of reproduction.
Do crossovers usually occur during mitosis?
No, crossovers do not occur during mitosis. Crossovers, also known as genetic recombination, happen during meiosis, specifically during prophase I. Mitosis is the cell division process that results in two identical daughter cells, while meiosis is the cell division process that results in four genetically unique daughter cells.
