this is because during the interphase, the cell is at a point where it has either completed its division or is about to start its division. here the chromosomes have not separated yet in preparation for the divisin and they so look alike that one cant differentiate a chromosome.
the DNA has not been duplicated yet. they have uncoiled to form long, thin strands. they leave the nucleus and are scattered throughout the cell. homologous chromosomes do not pair up until division starts.
They are visible during mitosis. During Prophase the DNA is compacted into Chromosomes while the intermediate filaments that make up the Nuclear Envelope are phosphorylated and it falls apart. Leaving behind the chromosomes, very easy to see throughout prophase, metaphase, anaphase and telophase (Until the nucleus reforms in both daughter cells and the chromosomes de-condense). Chromosomes are easy to see by definition, their name in greek literally means colored bodies, this mostly because the guy that saw them first had no idea what they were.
Mitosis is the process of cell division in which the chromosomes condense and the spindle is assembled. In each phase the chromosomes do different things: prophase: during this first phase of mitosis, the parent chromosomes become compacted and the spindle begins to form creating an X-shape when looked at through a microscope; prometaphase: the nuclear membrane becomes many small vesicles during this phase. The spindle microtubules reach out until they connect the chromosomes to their kinetochore and then a sort of "tug-of-war" happens while the chromosomes bounce between the two poles; metaphase: the chromosomes align along the equator of the cell as they become connected to the spindle poles; anaphase: the chromosomes work their way into becoming individual/independent chromosomes as they begin to find their place near the poles; and telophase: the chromosomes find their poles, the spindle disbands, and each chromosome gets its new nuclear membrane.
Nondisjunction occurs in too many cells or too few cells causing defects
i think its telophase
Only during the division stages of a cells life will chromosomes form. During Interphase the cells DNA is in the unorganized form of chromatin.
They double in size
coz in interphase, the chromatin threads are not yet condensed into what is called as chromosomes. they are thread like structures, and make a network called chromatin network. chromatin threads only begin to condense into thicker structures called chromosomes once the process of cell division actually begins
observe an individual tp montor chandes and responces during a mobility activity
Yes, sister chromatids separate and become individual chromosomes during mitosis. This process ensures that each daughter cell receives a complete set of chromosomes.
During interphase, chromosomes are not visible as distinct structures. Instead, the DNA is in the form of chromatin, a less condensed state where individual chromosomes cannot be seen.
No, individual chromosomes cannot be distinguished after telophase as the nuclear envelope reforms around the separate sets of chromosomes, making it difficult to discern individual chromosomes without specialized techniques such as fluorescent tagging.
The individual chromosomes cannot be seen in interphase because they haven't been condensed yet. That's what happens during mitosis so that it is easier to seperate them into new daughter cells. While in interphase, its called chromatin.
During interphase, chromosomes are not visible because they are in a less condensed form called chromatin. Chromatin is spread out and not easily distinguishable as individual chromosomes under a microscope.
During interphase, individual chromosomes are more difficult to see because they are in a less condensed state and are spread out within the nucleus. In contrast, during mitosis, the chromosomes are highly condensed and tightly packed, making them more visible under a microscope.
During metaphase 2, homologous chromosomes do not pair up. Instead, individual chromosomes line up along the metaphase plate in preparation for separation during anaphase 2.
No, during metaphase II of meiosis, homologous chromosomes do not pair up as they do in metaphase I. Instead, individual chromosomes line up along the metaphase plate.