Explain Crossing Over In Meiosis. ♦ crossing over is simply the exchange of genetic material between two homologous chromosomes to give rise to recombinant chromosomes. Meiosis is the formation of egg and sperm cells.

In prophase i, homologous chromosomes align lengthwise or pair with each other, and exchange of genetic material between the two chromosomes takes place, which is known as crossing over. This means that meiosis can result in almost an infinite amount of genetic variety. During meiosis, there is an important step to genetic variation.

Define Crossing Over Biology. In prophase i, homologous chromosomes align lengthwise or pair with each other, and exchange of genetic material between the two chromosomes takes place, which is known as crossing over. Such chromosomes are alike in appearance and it is not possible to distinguish between them in microscope.

A process in which homologous chromosomes exchange parts normally reciprocally but sometimes unequally. It is one of the reasons why each of us is unique. The exchange of genetic material between homologous chromosomes that occurs during meiosis and contributes to genetic variability.