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What happens in meiosis I that does not occur in meiosis I I?
DNA is copied.
What happens before meiosis?
DNA Replication. Before meiosis actually begins, the DNA that is packaged into chromosomes must be fully copied. Previous to replication, a germ cell contains two copies of each chromosome, a maternal copy, and a paternal copy
4 chromosome mutations?
Deletion: Part of a chromosome is missing. Duplication: A segment of a chromosome is copied multiple times. Inversion: A segment of a chromosome is reversed in orientation. Translocation: Part of a chromosome breaks off and attaches to another chromosome.
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.
What is it called when cells are copied with half the number of chromosomes?
It is called meiosis. During meiosis, cells undergo two rounds of division resulting in cells with half the number of chromosomes as the original cell. This process is important for sexual reproduction in eukaryotic organisms.
Are the chromosome copied before meiosis or during meiosis?
before
What happens in meiosis one that does not occur in meiosis two?
DNA is copied
What happens in meiosis I that does not occur in meiosis I I?
DNA is copied.
What happens before meiosis?
DNA Replication. Before meiosis actually begins, the DNA that is packaged into chromosomes must be fully copied. Previous to replication, a germ cell contains two copies of each chromosome, a maternal copy, and a paternal copy
What happens in meiosis that does not happen in meiosis 2?
DNA is copied in meiosis 1.
What occurs in meiosis i that does not occur in meiosis ii?
DNA is copied.
What happens in meiosis I that does that occur in meiosis Ii?
DNA is copied.
What happens in meiosis 1 that does not happen in meiosis 2?
DNA is copied in meiosis 1.
Is DNA copied between meiosis 1 and meiosis 2?
No, replication only takes place in the S phase of Interphase. Although, a brief interphase exists between Meiosis 1 and Meiosis 2, there is no S-phase in this case. Hence, no replication takes place between meiosis 1 and 2.
What happens in meiosis 1 that doesn't in meiosis 2?
DNA is copied
What is the name of each chromosome after being copied?
it is called a sister chromosome :)
What happens in meiosis 1 that doesn't happen in meiosis 2?
DNA is copied
