The Researchers Said That The Meeting of Eggs and Sperm

As the egg and sperm meet? Tues sex has long been a mystery, since the sharp contrast in which the large eggs and sperm are small but numerous.
To address this question, James Umen, and his colleagues at the Salk Institute of Biology Studies in La Jolla, California studied the algae Chlamydomonas reinhardtii due to unicellular and multicellular Volvox carteri.

Plants that differ from one another 200 million years ago, and two species known to reproduce sexually under certain conditions.

V carteri reproduces through the merger of large female egg and male sperm is not enough. Although the sex cells of C. reinhardtii same size, and can not be described as a man or a woman.

The process in each case controlled by the genetic sequence, known as “mating loci, or MT, which is expected to give scientists the keys.

For example, why the sex cells produced by two species of algae, so very different.

Team Umen comparing two areas MT algae by examining the sequence of RNA, produced by each of these genes are expressed.

They found that although the genome carteri V, only 17 per cent higher than C. reinhardtii, MT area five times.

“Genes involved soon in the way of sex, says Umen who believe the accumulation of mutations over time.

Each of useful mutations, such as the allocation of the egg and sperm in large and small parties, to be selected and saved.

The idea of this theory supports the traditional theory that sex chromosomes are genetically full of death and destruction and loss of genes that are not involved in reproduction. Inilah