0
The two small structures that separate and take up positions on opposite sides of the nucleus during prophase are the?
Wiki User
∙ 11y ago
The centrosomes, which contain the centrioles in animal cells, not plant cells.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoThe centrosome
Add your answer:
Earn +20 pts
Four phases of mitosis and explain?
Prophase metaphase anaphase and telophase 1 chromosomes condense from long strands into rodlike structures 2 nuclear membrane is dissolved and bro Aries align at cells equator 3 chromatids separate and move to opposite sides of the cell 4 a nuclear memrane forms around each set of chromosomes, they unwind afterwards.
The phase of mitosis during which chromosomes become visible and the centrioles separate from one another is?
Prophase. The chromosomes become more conspicuous because they gradually condense during prophase. The centrioles separate in animal cells; plant cells lack centrioles.
What are the 4 main stages of mitosis?
Prophase: The genetic material in the nucleus condenses and the duplicated chromosomes become visible. The nucleolus disappears and the nuclear envelope begins to break down, spindle fibers also start extending from both poles of the cell.Metaphase: The duplicated chromosomes become aligned in the center of the cell, spindle fibers attach themselves to the centromere of the chromosomes.Anaphase: The stage of mitosis in which the duplicated sets of chromosomes separate and two identical groups move to opposite poles of the cell.Telophase: A nuclear membrane re-forms around each new group of chromosomes
What structures allow chromosomes to separate and move during mitosis?
Science.
Spindle fibers line chromatids at equator of cell?
yes, the spindle fibers are connected to a protein in the center of the chromatid called a kinetochore, and it is during metaphase that they line up on the metaphase plate (equator). It is then during anaphase that they start to move toward opposite poles. And the spindle fibers are connected to centrioles and in prophase before they separate they are called a centrosome.
During prophase do the centrioles separate from each other and take up positions on the opposite sides of the nucleus?
Yes.
What stage centrioles separate?
Prophase- during prophase, chromatids shorten and thicken, nucleoli disappears, spindle fibers form and centrioles in animal cells move to opposite ends.
Four phases of mitosis and explain?
Prophase metaphase anaphase and telophase 1 chromosomes condense from long strands into rodlike structures 2 nuclear membrane is dissolved and bro Aries align at cells equator 3 chromatids separate and move to opposite sides of the cell 4 a nuclear memrane forms around each set of chromosomes, they unwind afterwards.
Chromosomes first become visible during which phase of mitosis?
Chromosomes first become visible during prophase of mitosis when they condense and coil up tightly. This allows them to be easily seen under a microscope as separate structures.
How animal cells separate?
Mitosis: Prophase, Metaphase, Anaphase, and Telephase (in that order)
The phase of mitosis during which chromosomes become visible and the centrioles separate from one another is?
Prophase. The chromosomes become more conspicuous because they gradually condense during prophase. The centrioles separate in animal cells; plant cells lack centrioles.
What are the four phases of mitosis.?
The events of mitosis, or the stages, are prophase, metaphase, anaphase and telophase. A way to remember the order of the stages is "PMAT."In prophase, the cell multiplies its genetic materials. In metaphase they line evenly across the center of the cell to prepare to split. In anaphase, the cell begins to separate and the genetic material moves toward the poles. The last stage, telophase, is when the cell has successfully split into two genetically identical cells. This happens in plant cells.The first and longest phase of mitosis, prophase, can take as much as 50-60% of the total time required to complete mitosis. During prophase, the chromosomes become visible. The Centrioles, two tiny structures located in the cytoplasm near the nuclear envelope, separate and take up positions on opposite sides of the nucleus.The Centrioles lie in a region called the centrosome that helps to organize the spindle, a fanlike microtubule structure that helps separate the chromosomes. During prophase, the condensed chromosomes become attached to fibers in the spindle at a point near the Centromere of each Chromatid. Interestingly, plant cells do not have centrosomes, but still organize their mitotic spindles from centrosomes.Near the end of the prophase, the chromosomes coil more tightly. In addition, the nucleolus disappears, and the nuclear envelope breaks down.Prophase: Chromosomes condense, centrioles form, Metaphase chromosomes lineup at the metaphase plate (midline), anaphase chromatids separate and are pulled at centrioles by kinetochores, and teleophase: nucleus reforms, and cytokinesis the cells bud from each other.....
What is a paired structure that appear next to the nucleus during prophase to separate chromosomes?
The centrosomes.
Which stage of meiosis do centromeres separate?
anaphase **Remember anaphase means apart
How does non-disjunction occur?
Nondisjuction occurs when the homologous chromosomes fail to separate.
How does prophase you of meiosis differ from prophase of mitosis?
a. chromatids do not separate at the centromere in anaphase I. b. centromeres do not exist in anaphase I. c. crossing-over occurs only in anaphase of miitosis
The phase of mitosis during wich chromosomes become visible and the centrioles separate from one another is?
Prophase.
