Why might crossing over be beneficial?

Answer 1

Linked genes do not assort independently since they are found on the same chromosome. Crossing over is a random process that occurs during prophase I ofmeiosis. It occurs in the tetrads when pieces of two homologous chromosomes switch places with each other. The new chromosomal set up is different from the original homologs found in the cell before prophase I began. A test cross must be conducted in order to demonstrate the process of crossing over. A test cross is the mating of a heterozygous individual for both characteristics with a homozygous recessive one for both characteristics. Crossing over produces variety within the species. The more variety the more chances the species has to adapt to a changing environment. Meiosis produces a variety of gametes designed to foster this kind of diversity.

Answer 2

crossing over is beneficial because it is the main cause of genetic diversity, with ought genetic diversity it would be extremely likely that all of mankind would be killed off. Think about it, some people are prone to certain illnesses while others have an amenity to them, this is because of their genetic diversity. if we all had the same genetic material then there could be a certain illness that could come around and whip out all of man kind because if one person is prone to it, we would all be, and eventually we would all die.

Answer 3

Crossing over produces variety within the species. The more variety the more chances the species has to adapt to a changing environment. Meiosis produces a variety of gametes designed to foster this kind of diversity.

Answer 4

It allows variation in the produced offspring as genes from both parents are present in the organism.

Answer 5

crossing over gives an advantage so they have different types of texture so if a type of species dies mabe the other will survive.