Crossing-over
Metaphase
yes they are now visible during prophase
duplicated cell wall.
The nucleolus disappears during prophase of mitosis because it is the stage where the nuclear envelope breaks down, causing the nucleolus to disperse. This disappearance is due to the disassembly of the nucleolar components and the redistribution of its content throughout the cell.
Nucleous is dissapeared in pro phase.It re appear in telo phase.
Crossing over or chromosomal crossover.
During the crossing-over of pro phase 1, chromosomes of a homologous pair break and exchange genes.
"Pro tempore" means temporary.
During the interphase of the cell cycle, chromosomes are not individually visible. Instead, they are uncoiled and spread throughout the nucleus as chromatin. This phase is focused on growth, organelle replication, and preparing for cell division.
The 4 phases are- 1. Pro phase 2. meta phase 3. ana phase 4. Telo phase
The first phase of the cell cell cycle is interphase, followed by pro-phase, meta-phase, telo-phase, and ending with ana-phase. Enjoy!
Homologous chromosomes pair up during prophase I of meiosis to form a structure called a bivalent, also known as a tetrad. This pairing allows for genetic recombination to occur between homologous chromosomes.