What is the key difference between prophase and prophase 1 quizlet?
Prophase 1 is the beginning phase of meiosis while prophase 2 is the beginning phase of prophase 2. There is a long interphase before prophase 1, whereas prophase 2 occurs without an interphase.
What’s the difference between prophase of mitosis and prophase 1 of meiosis?
During prophase I, the chromosomes condense, as in mitosis. However, the homologous chromosomes also pair in prophase I. … After prophase I, meiosis I proceeds to divide the contents of the cell. Unlike in mitosis, the sister chromosomes stay together through meiosis I, but the homologous chromosomes are separated.
What is the difference between prophase and prophase 1?
There are a couple of differences between mitotic prophase and prophase I. During prophase I, homologous chromosomes come together. … During prophase I, these homologous chromosomes pair up and sometimes intertwine. A process called crossing over can happen during prophase I.
Which of the following is a difference between phase1 and Phase 2 of meiosis?
Both Meiosis I and II have the same number and arrangement of phases: prophase, metaphase, anaphase, and telophase. … In meiosis II, these chromosomes are further separated into sister chromatids. Meiosis I includes crossing over or recombination of genetic material between chromosome pairs, while meiosis II does not.
How is prophase II different from prophase I quizlet?
In meiosis, how does prophase I differ from prophase II? During prophase I there is one diploid cell; during prophase II there are two haploid cells.
What happens to the chromosomes at the end of prophase 1 that is different from mitosis?
At the end of prophase I, the nuclear membrane finally begins to break down. Outside the nucleus, the spindle grows out from centrosomes on each side of the cell. As in mitosis, the microtubules of the spindle are responsible for moving and arranging the chromosomes during division.
What process occurs in prophase 1 of meiosis that does not occur in prophase of mitosis?
In meiosis , synapsis ( Pairing of homologous chromosome ) , Crossing over ( exchange of chromosomal segment between nos sister chromatids ) occurs which does not occur in mitosis.