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In what phase do spindle fibers form from the centrioles?
Spindle fibers are thin tubes that form between the centrioles during mitosis. True..
Is the first phase of mitosis in which chromosomes condense and spindle microtubules begin to form.?
the phase of mitosis when chromosimes are ligned in the middle of the cell
In which phase do spindle apparatus has disassembled and the spindle fibers dissolve?
Telophase
What phase in mitosis happens first?
The first phase in mitosis is prophase, during which the chromosomes condense, the nuclear envelope breaks down, and the mitotic spindle fibers begin to form.
Is DNA condensed in S phase?
DNA is duplicated in the S phase because in the G1 phase the cell is growing and not yet ready to divide, then DNA copies as the first step for when it is getting ready to divide. In the G2 phase the cell continues to get ready to divide once the DNA is copied.
At which phase of meiosis 1 do spindle fibers form?
Spindle fibers form during the prophase stage of meiosis 1.
In what phase do spindle fibers form from the centrioles?
Spindle fibers are thin tubes that form between the centrioles during mitosis. True..
Is the first phase of mitosis in which chromosomes condense and spindle microtubules begin to form.?
the phase of mitosis when chromosimes are ligned in the middle of the cell
What phase are chromosomes visible and attach to spindle fibers?
Visible in prophase and attach to spindle fibers in meta phase
In which phase do spindle apparatus has disassembled and the spindle fibers dissolve?
Telophase
What phase is the spindle is formed?
prophase
Which phase is the DNA replicated in during mitosis?
Chromatin (DNA in loose form) is replicated in the S phase of interphase. Interphase follows prophase and is comprised of a G1 phase, S phase, and G2 phase.
What event occurs during interphase?
The cell is prepared for division by doubling the DNA and centromeres and adding spindle fibers
Is DNA condensed in g2 phase?
Yes, DNA is condensed in G2 phase. During G2 phase of the cell cycle, DNA is already replicated and has undergone condensation to form distinct chromosomes. This preparation ensures that the cell is ready for mitosis.
What phase in mitosis happens first?
The first phase in mitosis is prophase, during which the chromosomes condense, the nuclear envelope breaks down, and the mitotic spindle fibers begin to form.
How do you describe how DNA copies itself?
DNA replication occurrs through a process called mitosis. The stages of mitosis are (I)PMAT.InterphaseIn the G1 phase, protein synthesis occurrs and mRNA runs along the chromosomes. In the S phase, DNA polymerase runs along the chromosomes/chromatids and creates complementary strands of DNA. In the G2 phase, the 23 chromosomes all have sister chromatids.2. Prophase- Chromosomes condense, spindle fibers form, and the nuclear membrane disintegrates. (23 chromosomes/46 chromatids)3. Metaphase- the chromosomes line up in the middle of the cell and spindle fibers from the centrioles connect to the chromosomes at the kinetochores. (23 chromosomes/46 chromatids)4. Anaphase- Sister chromatids are pulled apart by the spindle fibers to each pole of the cell. (23 chromosomes/46 chromatids)5. Telophase- nuclear envolopes form around the chromatids at each pole, the spindle fibers reduce, the chromatids decondense. (46 chromosomes/ 46 chromatids)Then cytokinesis occurrs to split up the cell into two cells.
How many double helices of DNA are present at the start of the G1 phase and at the start of the G2 phase of the cell cycle?
At the start of the G1 phase, there is one double helix of DNA present in the cell. By the start of the G2 phase, the DNA has replicated to form two double helices, ready for cell division.
