Is prophase the same in mitosis and meiosis?

How is prophase different in mitosis and meiosis?

During prophase I, the chromosomes condense, as in mitosis. However, the homologous chromosomes also pair in prophase I. … Unlike in mitosis, the sister chromosomes stay together through meiosis I, but the homologous chromosomes are separated. Each homologous chromosome carries different alleles for each gene.

Is prophase part of mitosis or meiosis?

Prophase is the first phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses.

What is the major difference between prophase I of meiosis and prophase of mitosis?

In mitosis, prophase, metaphase, anaphase and telophase occur once. Chromosomes condense and the centrosomes begin to form an early spindle. Meiotic prophase I is much longer that mitotic prophase. During prophase I homologous chromosomes make contacts with each other called chiasmata and “crossing over” occurs.

What is the same in mitosis and meiosis?

Mitosis and meiosis both involve duplication of a cell’s DNA content. Each strand of DNA, or chromosome, is replicated and remains joined, resulting in two sister chromatids for each chromosome. A common goal of mitosis and meiosis is to split the nucleus and its DNA content between two daughter cells.

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What happens in prophase I of meiosis that does not happen in mitosis or in prophase 2?

The events that occur in meiosis but not mitosis include homologous chromosomes pairing up, crossing over, and lining up along the metaphase plate in tetrads.

Which of the following occur in both mitosis and meiosis?

Aside from these two distinct purposes, both mitosis and meiosis occur in multiple stages during which the same general things happen: DNA replication and condensation, nuclear membrane degradation, spindle formation, chromosomal segregation and nuclear reformation.

What is a major difference between mitosis and meiosis I?

Mitosis involves the division of body cells, while meiosis involves the division of sex cells. The division of a cell occurs once in mitosis but twice in meiosis. … Daughter cells resulting from mitosis are diploid, while those resulting from meiosis are haploid.

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.