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Meiosis I begins after the cell has completed interphase, during which the DNA is replicated. This phase initiates with prophase I, where homologous chromosomes pair up and exchange genetic material through a process called crossing over. Meiosis I then progresses through metaphase I, anaphase I, and telophase I, ultimately resulting in two haploid daughter cells.
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What does meiosis 1 begin with?
Meiosis 1 begins with prophase 1, during which homologous chromosomes pair up and undergo genetic recombination through crossing over.
Does meiosis double the parental chromosomes number?
Meiosis 1
What is the first phase in meiosis?
Meiosis 1: Prophase 1, Metaphase1, Anaphase 1, Telophase 1. Meiosis 2: Prophase 1, Metaphase 2, Anaphase 2, Telophase 2. Makes 4 daughter cells that contain 4 chromosomes each.
Does metaphase of mitosis meiosis 1 or meiosis 2 have the haploid number of chromosomes at the equator of the spindle?
Metaphase of meiosis 2 has the haploid number of chromosomes at the equator of the spindle. In meiosis 1, during metaphase, there are still pairs of homologous chromosomes lined up at the equator.
What happens in meiosis 1 that doesn't happen in meiosis 2?
DNA is copied
What does meiosis 1 begin with?
Meiosis 1 begins with prophase 1, during which homologous chromosomes pair up and undergo genetic recombination through crossing over.
At what stage do cells starting mitosis and meiosis begin with a?
Cells starting mitosis and meiosis begin with a stage called interphase.
What must happen before meiosis can begin?
DNA replicates and forms tetrad—APEX.
What happens in meiosis 1 that does not happen in meiosis 2?
DNA is copied in meiosis 1.
What are the two distinct stages of meiosis?
Meiosis I and meiosis II
What k must happen before meiosis can begin?
A duplication of the chromosomes is what must happen before meiosis can begin.
What are the divisions of meiosis called?
Meiosis 1 and Meiosis 2
What happen to chromosome of a cell in order for meiosis to begin?
they have to duplicate
What happens to the chromosomes of a cell in order for meiosis to the begin?
They mate.
What are 2 distinctive divisions of meiosis?
Meiosis 1 and Meiosis 2
Is there an S phase after meiosis 1?
No, there is no S phase after meiosis 1.
What happens in meiosis that does not happen in meiosis 2?
DNA is copied in meiosis 1.
