Which of the following is an event of anaphase of mitosis?
Anaphase is the fourth step in mitosis. In anaphase, cohesin proteins binding the sister chromatids together break down. sister chromatids (now called chromosomes) are pulled toward opposite poles.
Which statement best describes the events of anaphase?
Which of the following best describes the events of anaphase I of meiosis? Each homologous pair of sister chromatids migrates to opposite poles.
What is the defining event of anaphase?
In anaphase, the sister chromatids separate from each other and are pulled towards opposite ends of the cell. The protein “glue” that holds the sister chromatids together is broken down, allowing them to separate. Each is now its own chromosome. The chromosomes of each pair are pulled towards opposite ends of the cell.
Which of the following best describes the events of anaphase I of meiosis quizlet?
Each homologous pair of sister chromatids migrates to opposite poles. Which of the following best describes the events of anaphase I of meiosis? The two pairs of sister chromatids migrate to the same pole. Each homologous pair of sister chromatids migrates to opposite poles.
What happens during prophase metaphase anaphase and telophase?
1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres 2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell) 3) Anaphase: sister chromatids are pulled to opposite poles of the cell 4) Telophase: nuclear envelope …
Which of the following events occur during anaphase I quizlet?
During anaphase I, the homologous chromosomes (paired bivalents) separate from each other. Homologues reach their respective poles during telophase I, the nuclear membrane re-forms to produce two separate nuclei.
Which of the following correctly describes events that occur during metaphase one and anaphase one of meiosis?
Which of the following correctly describes the events that occur during metaphase I and anaphase I of meiosis? Paired homologous chromosomes line up across the center of the cell and then the homologous pairs of chromosomes are pulled to opposite ends of the cell.
Which of the following is the best description of the events occurring during anaphase I of meiosis?
Which of the following is the best description of the events of anaphase I? Homologous chromosomes randomly separate and migrate to opposite poles.
Which of the following best describes what occurs during metaphase?
Metaphase is a stage in the cell cycle where all the genetic material is condensing into chromosomes. These chromosomes then become visible. During this stage, the nucleus disappears and the chromosomes appear in the cytoplasm of the cell. … As metaphase continues, the cells partition into the two daughter cells.
Where does anaphase usually occur?
Anaphase of Meiosis takes place in the sperm and the ovum cells whereas Anaphase of Mitosis can take place in all cells of the body. In anaphase, the spindle fibres pull homologous chromosomes that are arranged at the equatorial plate, towards opposite poles of the spindle.
Why is metaphase important in mitosis?
Metaphase is the third phase of mitosis, the process that separates duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. … There is an important checkpoint in the middle of mitosis, called the metaphase checkpoint, during which the cell ensures that it is ready to divide.
What happens during anaphase quizlet?
What happens during Anaphase? The spindle fibers SPLIT APART the sister chromatids and move them to opposite ends of the cell, equally dividing the genetic material. … A new nuclear membrane forms around each new set of chromosomes, each with the same number of chromosomes as the original cell.
Which of the following best describes the major difference between anaphase of mitosis and anaphase 1 of meiosis?
Which of the following statements best describes the major difference between anaphase of mitosis and anaphase I of meiosis? In anaphase I, homologous pairs are separated but sister chromatids stay joined together. … in prophase I, tetrads of homologous chromosomes form and crossing over occurs.
During what stage of meiosis II does the nuclear envelope break down?
During prophase II, chromosomes condense and the nuclear envelope breaks down, if needed. The centrosomes move apart, the spindle forms between them, and the spindle microtubules begin to capture chromosomes.
Are chromosomes replicated in G1?
G1 phase (Gap 1) – Cellular contents excluding the chromosomes, are duplicated. … S phase (DNA Synthesis) – Each of the 46 chromosomes are duplicated by the cell.