How many new nuclei are formed during mitosis?
Two new nuclei form. Chromosomes appear as chromatin. Mitosis ends. mitosis Cell division in which the nucleus divides into two nuclei containing the same number of chromosomes with an end result of two identical cells.
What is the final stage of mitosis called?
The final stage of mitosis (or meiosis) during which the chromosomes of daughter cells have completed their movement toward the poles by the action of the nuclear spindle fibers and new daughter nuclei form; during telophase the chromosomes relax into their chromatin configuration and new nuclear membranes form around them. cytokinesis
What happens during mitosis?
Her work has been featured in "Kaplan AP Biology" and "The Internet for Cellular and Molecular Biologists." Mitosis is the phase of the cell cycle where chromosomes in the nucleus are evenly divided between two cells. When the cell division process is complete, two daughter cells with identical genetic material are produced.
What happens during telophase of mitosis?
telophase The final stage of mitosis (or meiosis) during which the chromosomes of daughter cells have completed their movement toward the poles by the action of the nuclear spindle fibers and new daughter nuclei form; during telophase the chromosomes relax into their chromatin configuration and new nuclear membranes form around them.
During which phase of mitosis are the daughter nuclei formed?
telophaseDuring telophase, the newly separated chromosomes reach the mitotic spindle and a nuclear membrane forms around each set of chromosomes, thus creating two separate nuclei inside the same cell.
During what phase are daughter cells formed?
At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter cells.
During which phase of mitosis do the chromosomes reach the Pole?
telophaseMitosis ends with telophase, or the stage at which the chromosomes reach the poles. The nuclear membrane then reforms, and the chromosomes begin to decondense into their interphase conformations. Telophase is followed by cytokinesis, or the division of the cytoplasm into two daughter cells.
What are the daughter cells produced by mitosis called?
The daughter cells from mitosis are called diploid cells. Diploid cells have two complete sets of chromosomes. Since the daughter cells have exact copies of their parent cell's DNA, no genetic diversity is created through mitosis in normal healthy cells.
What is the daughter cell of mitosis?
Mitosis is used to produce daughter cells that are genetically identical to the parent cells. The cell copies - or 'replicates' - its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set.
What are the 4 phases of mitosis and what happens in each?
There are four stages of mitosis: prophase, metaphase, anaphase and telophase. Chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres. Chromosomes line up along the metaphase plate (centre of the cell).
What happens during prophase of mitosis?
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 part of mitosis shows two daughter cells now forming?
Cytokinesis. Cytokinesis is the second part of the mitotic phase during which cell division is completed by the physical separation of the cytoplasmic components into two daughter cells.
How are daughter cells formed?
Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells.
What happens in the S phase?
S phase is the period of wholesale DNA synthesis during which the cell replicates its genetic content; a normal diploid somatic cell with a 2N complement of DNA at the beginning of S phase acquires a 4N complement of DNA at its end.
What is a daughter cell in meiosis?
Daughter cells are cells that result from the division of a single parent cell. They are produced by the division processes of mitosis and meiosis. Cell division is the reproductive mechanism whereby living organisms grow, develop, and produce offspring.
What happens in the G1 S and G2 phases of the cell cycle?
Initially in G1 phase, the cell grows physically and increases the volume of both protein and organelles. In S phase, the cell copies its DNA to produce two sister chromatids and replicates its nucleosomes. Finally, G2 phase involves further cell growth and organisation of cellular contents.
What stage of mitosis is the spindle apparatus?
The second stage of mitosis (or meiosis) during which the visible chromosomes (maximally supercoiled DNA) line up at the center to form the metaphase or equitorial plate and the spindle apparatus completes its formation and attachment to the chromosomes.
What is the pattern of cytokinesis observed in animal cells?
The pattern of cytokinesis observed in most animal cells in which elements of the cytoskeleton slide in the plane of the metaphase plate slowly pulling the cell membrane inward , creating an appearance of the outer membrane pinching in , to separate the cytoplasm of the mother cell into the two daughter cells; at the molecular level, the pinching in of the cytoplasm is achieved by the movements of the cytoskeletal elements powered by ATP hydrolysis.
What is the division of the cytoplasm?
The division of the cytoplasm of a cell, usually into roughly equal proportions, following the division of the nucleus by mitosis or meiosis to produce to separate daughter cells; in animal cells, it is also called cleavage; at the molecular level, the pinching in of the cytoplasm is achieved by the movements of the cytoskeletal elements powered by ATP hydrolysis
Which region of the chromosome is the most condensed and constricted?
The most condensed and constricted region of a chromosome, to which the microtubular spindle fiber is attached during mitosis or meiosis; it is also the point on the chromosome where the daughter chromatids are attached to one another; its location varies among different chromosomes in terms of its position along the length of the chromosome.
Which phase of mitosis is the final stage of the cell cycle?
The final stage of mitosis (or meiosis) during which the chromosomes of daughter cells have completed their movement toward the poles by the action of the nuclear spindle fibers and new daughter nuclei form; during telophase the chromosomes relax into their chromatin configuration and new nuclear membranes form around them.
Which stage of mitosis moves chromosomes away from the metaphase?
The third stage of mitosis (or meiosis) during which the chromosomes are moved away from the metaphase or equitorial plate by the spindle fibers and move toward the centrioles at the opposite poles.
What is the first stage of mitosis?
The first stage of mitosis (or meiosis) during which the DNA (chromatin configuration) of the cell begins the process of supercoiling to become visible chromosomes, the centrioles move toward the poles of the cell and the nuclear membrane begins to disappear
Answer
telophase because the chromosomes reach poles and new nuclear membranes form around the chromosomes, creating the nuclei for two new cells. The chromosomes decondense and the cell splits into two daughter cells, each with a nucleus.
New questions in Biology
It tells whether the solute is soft or hard, powder or a whole piece. a. Manner of stirring b. Temperature C. Nature of solute d. Nature of solvent
What are the two chromatids that make up a chromosome?
Two chromatids bound at a centromere make a CHROMOSOME. Special strands of microtubules which grow out of the centrioles, connect to chromosomes at the centromeres, and pull them apart during (anaphase) of mitosis. (each has 23 from mom, 23 from dad). Consists of 2 "sister" chromatids bound at a centromere.
What is the second phase of the cell cycle?
The second growth phase of the cell cycle, consisting of the portion of interphase after DNA synthesis occurs.
Which stage of mitosis is the third stage?
Centromere (twin centriole pairs) cell structure that joins two sister chromatids. Metaphase.
What is the longest part of the cell cycle?
1.Third main stage of the cell cycle, during which the cell's cytoplasm divides, creating a new cell. 2. The cytoplasm forms a cleavage furrow at the equator to split the cytoplasm.
What is the final preparation phase of mitosis?
Final preparation phase. Cell checks for DNA errors and begins to form centrosomes. (Prepares for Mitosis)
What is the term for the process that produces cells, growth and maintenance but doesn't involve fertilization of an egg?
Reproduces cells, growth and maintenance but doesn't involve fertilization of an egg. (Mitosis)
What is the phase of a cell?
Cell grows, performs its normal functions, and prepares for division; consists of G1, S, and G2 phase s. (Period of normal growth and maintenance. (3 stages)
