Which of the following occurs during prophase Which of the following occurs during prophase?

Which of the following occurs during prophase?

During prophase, chromatin condenses into chromosomes, and the nuclear envelope, or membrane, breaks down. In animal cells, the centrioles near the nucleus begin to separate and move to opposite poles (sides) of the cell. As the centrioles move, a spindle starts to form between them.

What happens in the stage prophase?

In early prophase, the cell starts to break down some structures and build others up, setting the stage for division of the chromosomes. The chromosomes start to condense (making them easier to pull apart later on). The mitotic spindle begins to form.

What happens during prophase quizlet?

What happens during prophase? A cells genetic DNA condenses, spindle fibers begin to form and the nuclear envelope dissolves. … The duplicated chromosomes line up and spindle fibers connect to the centromeres. You just studied 9 terms!

Which of the following occurs during the prophase of mitosis?

The first and longest phase of mitosis is prophase. During prophase, chromatin condenses into chromosomes, and the nuclear envelope (the membrane surrounding the nucleus) breaks down.

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Which of the following occurs during prophase Which of the following occurs during prophase?

The correct answer is (c) synapsis and crossing over. During prophase I of meiosis, synapsis and crossing over take place.

What are the 5 stages of prophase?

Meiotic prophase I is subdivided into five stages: leptotene, zygotene, pachytene, diplotene, and diakinesis.

What happens in prophase of meiosis?

During prophase I, the complex of DNA and protein known as chromatin condenses to form chromosomes. … A large structure called the meiotic spindle also forms from long proteins called microtubules on each side, or pole, of the cell. Between prophase I and metaphase I, the pairs of homologous chromosome form tetrads.

What is prophase simple?

1 : the initial stage of mitosis and of the mitotic division of meiosis characterized by the condensation of chromosomes consisting of two chromatids, disappearance of the nucleolus and nuclear membrane, and formation of mitotic spindle.

What happens in prophase sentence?

In prophase I of meiosis, pairs of homologous chromosomes intertwine and the process called crossing over occurs as chromatids from homologous pairs of chromosomes swap genetic information. This process creates genetic diversity among the gametes formed through meiosis.

What happens during prophase I of meiosis quizlet?

What happens during prophase I of meiosis? Homologous chromosomes form and crossing over occurs between them. … -Meiosis produces four genetically different haploid cells. -Genetic material is exchanged between homologous chromosomes in meiosis during crossing over.

What is the purpose of prophase quizlet?

Terms in this set (4)

During prophase, the DNA becomes condensed into chromosomes so that the chromosomes can be moved and separated efficiently.

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