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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 stage does chromatin condense to chromosomes?
During mitosis, chromosomes are in their most condensed form during metaphase
After meiosis I the two daughter cells would have how many chromosomes?
23. The chromosome number is reduced to one half during the first meiotic division. Recall that the number of chromosomes is determined by the number of centromeres, and not the number of chromatids.
Is duplication of paired chromosomes in the first stage of meiosis?
Yes duplication of chromosomes occurs during the first stage of meiosis or during prophase.
What is it when chromosomes are first visible?
during prophase
Explain the importance of crossing-over during the first division of meiosis?
The first division reduces the number of Chromosomes by half.
Name the phase of cell division when duplicated chromosomes first appear?
Duplicated chromosomes first become visible during prophase.
What part of the cell divides first during cell division?
The first stage of mitosis is known as interphase. During this phases, chromosomes and organelles replicate and get rid for cell division.
In the first division of meiosis that you just observed what happens to the number of chromosomes per cell?
It depends on what the animal or plant is. For humans, the first division results in 23 chromosomes per cell
What is the separation of homologous pairs of double chromosomes during meiosis?
the stage is called the "first division"
Why are chromosomes visible during cell division?
Chromosomes are invisible except during cell division because the DNA stays in the nucleus. This is to protect it.
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
How does the arrangement in chromosomes at meta phase differ in mitotic division and the first division?
in meiotic cell division the chromosomes are not aligned in the middle like meta phase.
How does the appearance of the chromosome change through division?
first it becomes two chromatids, then during prophase, chromosomes condense from long strands into rod like structures. During METAPHASE paired chromatids align at the cell's equation. Then during ANAPHASE the paired chromatids separate and move to the opposite side of the cell. During TELOPHASE a nuclear membrane forms around each set of chromosomes, and the chromosomes decondense.
What will separate in the first division in meiosis one?
chromosomes
What phase of mitosis do the chromosomes replicate?
Strictly speaking, the chromosomes are not copied during mitosis but already before cell division takes place. This phase is called INTERPHASE and is again divided into three phases, G1 (first gap), S (synthesis), and G2 (second gap). The replication of chromosomes only happens in the S phase.
What stage does chromatin condense to chromosomes?
During mitosis, chromosomes are in their most condensed form during metaphase
