During meiosis, paternal and maternal chromosomes duplicate, pair, and exchange parts of their DNA in a process called meiotic recombination. In order to mediate this exchange of genetic material ...

The checkpoints are molecular mechanisms that can halt the cell cycle until everything is in order for the next step, and they can even cause a cell to self-destruct if errors have occurred. In ...

Mitosis: Meiosis: Prometaphase The centrioles are now at opposite ends of the cell. The spindle fibers from both of the centrioles attach to each one of the chromosomes.

Meiosis: Mitosis and cytokinesis are complete. Prophase II As in prophase I, ... Unlike prophase I, the chromosomes do not attach to the nuclear membrane in order to exchange genetic information.

In order to control various biological processes, cells are able to selectively alter properties of their proteins, such as their lifespan, activity level, binding partners, or localization of the ...

Researchers at the IPK Leibniz Institute have discovered a previously unknown protein that is central to plant reproduction.

In order to control various biological processes, cells are able to selectively alter properties of their proteins, such as their lifespan, activity level, binding partners, or localization of the ...

Mitosis and meiosis are two kinds of cell division that are essential to most forms of life on earth. Here we investigate the key differences and similarities between the two processes. ... Mnemonics ...

During meiosis, homologous regions ... They proposed that the repetitive DNA sequence of the PAR “confers unique chromatin and higher-order structures that are crucial for recombination.” ...

Disruption of meiosis, a process on which the creation of these eggs depends, shortens the animal’s entire lifespan and accelerates its aging. view more . Credit: Scott Keith & Arjumand Ghazi.