What difference is there in the compaction of chromosomes during metaphase and interphase?
What difference is there in the compaction of chromosomes during metaphase and interphase?
These chromosomes, actually are more condensed in the metaphase than the other stages as these chromosomes are being transported to the opposite poles of the cell in this phase. Conversely, interphase is the stage where these chromosomes are most loosely compacted. Thus, the answer is C.
Are chromosomes compacted in interphase?
During interphase, the cell’s DNA is not condensed and is loosely distributed. A stain for heterochromatin (which indicates the position of chromosomes) shows this broad distribution of chromatin in a mouse cell (upper left). The same stain also shows the organized, aligned structure of the chromosomes during mitosis.
What is the difference between metaphase and interphase?
is that interphase is the stage in the life cycle of a cell between two successive mitotic or meiotic divisions while metaphase is the stage of mitosis and meiosis, that follows prophase and comes before anaphase, during which condensed chromosomes become aligned before being separated.
How does chromosome compaction work?
During some stages of the cell cycle, the long strands of DNA are condensed into compact chromosomes to fit in the cell’s nucleus. In the first level of compaction, short stretches of the DNA double helix wrap around a core of eight histone proteins at regular intervals along the entire length of the chromosome.
What is the chromosome puff at position 3C?
The puff at region 3C, known to be transcriptionally active in larval salivary glands, gives a bright fluorescence with antibodies against RNA polymerase B. This fluorescence disappears after exposure of the larvae to 370 for 45 min.
What phase do chromosomes Decondense?
During telophase both sets of chromatids are surround by new nuclear membranes and chromosomes decondense into chromatin. Cytokinesis (the dividing of the cytoplasm into two cells) follows telophase. If the cell were arrested during telophase, distinct chromatids would no longer be visible.
How do chromosomes differ between metaphase and anaphase of mitosis?
In metaphase, chromosomes are lined up and each sister chromatid is attached to a spindle fiber. In anaphase, sister chromatids (now called chromosomes) are pulled toward opposite poles. In telophase, chromosomes arrive at opposite poles, and nuclear envelope material surrounds each set of chromosomes.
How do the chromosomes behave during Karyokinesis?
During this time, the cell completes a number of stages. The chromosomes that were replicated during the S phase are partitioned so that each new daughter cell has a complete set of chromosomes. Karyokinesis is defined as the separation of the chromosomes.
How are chromosomes arranged during this metaphase?
During metaphase chromosomes are arranged on a plane which is known as an equatorial plate. Metaphase is a stage in which the eukaryotic cell division takes place resulting in the alignment of chromosomes in the middle of the cell.
