In the third step of mitosis, called metaphase, each chromosome lines up in a single file line at the center of the cell. By this point in time, the membrane enclosing the nucleus has dissolved, and mitotic spindles have attached themselves to each chromatid in all the chromosomes.
What is the phase when a cell has a single line of chromosomes?
G. A cell has a single line of chromosomes. What is the phase? This is metaphase.
What happens to chromosomes Phase 1?
Figure 1: During prophase, the chromosomes in a cell’s nucleus condense to the point that they can be viewed using a light microscope. Prophase is the first phase of mitosis. During this phase, the chromosomes inside the cell’s nucleus condense and form tight structures.
Does chromosome have one line?
A cell has a single line of chromosomes. … If the cell’s DNA weren’t duplicated, then each daughter cell would only get half of a complete set of DNA.
What stage are chromosomes not visible?
During interphase, individual chromosomes are not visible, and the chromatin appears diffuse and unorganized.
Is anaphase a G1?
During anaphase, DNA is segregated into two which separates the nucleolus (black sphere) from DNA. … As nuclei finish their transition into G1 all proteins of the parental nucleolus are re-imported into daughter nuclei to form a new nucleolus within each daughter G1 nucleus.
How many chromosomes are in G1 and G2?
There are 46 individual chromosomes in each cell. After replication there are a total of 46 chromosomes, with 92 individual chromatids, in each cell. G2 Phase: During G2, the cell makes proteins that are used in cell division. One of the proteins will be used in the formation of microtubules.
What three phases are individual chromosomes no longer visible?
It is during interphase, telophase, and cytokinesis that the chromosomes are no longer visible.