Trisomy X females have an additional X chromosome and are also referred to as metafemales (XXX)
Some articles refer to a 4rth chromosome, but in general the ones that have excess of X chromosomes they are called metafemales.
When meiosis begins at Gap 1 phase (G1) the cell of a human has 46 chromosomes or 2n.
Thre are 46 chromosomes in any common human cell during interphase. 22 pairs of autosomes and one pair of sexual chromosomes.
12
68 i think but don't trust me : )
During prophase at the start of mitosis, the parent cell has a diploid number of chromosomes, which consists of a complete set of chromosomes from both parents. This means that if a human cell has 46 chromosomes prior to mitosis, it would have 46 chromosomes during prophase as well.
A diploid cell in G1 phase has 46 chromosomes.
After the S phase of the cell cycle, there are 46 chromosomes present in the cell.
In the G2 phase of the cell cycle, there are typically 46 chromosomes present in human cells.
If the cell has 8 chromosomes, it should have 8 at the very beginning of mitosis. However during the interphase, specifically the S phase, the chromosomes are duplicated which means that for most of the cell cycle, the cell has 16 chromosomes. However after the cells splits, each daughter cells is left with 8 chromosomes, which is identical to the number of chromosomes in the original parent cell. Hope this helps!
DNA is replicated.
During mitosis, two sister chromatids from each chromosome will line up at the equator of the cell. This occurs after the chromosomes have replicated during the S phase of the cell cycle.
DNA is duplicated in s(ynthesis)-phase, and chromatin structure begins to tighten post-replication and on through G2, if there even is a G2 in whatever particular cell you're looking at (G2 is not a necessary part of the cell cycle and is left out in many different scenarios). Chromosomes (the most compact chromatin structure) begin to condense further during prophase of mitosis with the help of some of the condensin and cohesin complexes.So I would say the answer to your question as written is S-phase.
When meiosis begins at Gap 1 phase (G1) the cell of a human has 46 chromosomes or 2n.
Thre are 46 chromosomes in any common human cell during interphase. 22 pairs of autosomes and one pair of sexual chromosomes.
12
68 i think but don't trust me : )
Each sperm cell will contain n chromosomes, which is half the number of chromosomes in the original cell.