Each bird was very powerful, but the fact that it survived until it hatched is a major issue. “I think it’s one of the most important lessons in the history of parthenogenesis and birds for a long time,” says Warren Booth, a biologist at the University of Tulsa who studies facultative parthenogenesis in snakes and has not participated in the paper. He also said that although sharks and rays emitted by natural reproduction have survived, this has not been the case in birds. Parthenotes born to turkeys, chickens, quail, zebras, and pigeons almost all died before hatching.
Although the condors died young, Booth states, “This gives us some information that perhaps within raptors, we can see the potential to produce condoms.a healthy particle — or alive and viable — that could reproduce among those people. ”
Many spinal cord organisms reproduce sexually, mixing genetic material from men and women to form new offspring. The following is a good rule of thumb: If the unborn child has inherited a defective gene from another parent, the other parent may charge the latter.
But sometimes animals that have the oldest germs, including birds, lizards, sharks, and snakes — leave the male to reproduce spontaneously. Like mammals, females of these species produce eggs through meiosis, a process carried by chromosomes. The pieces are divided into four different cells, one with only an egg. During fertilization, the egg integrates its genes with those of the man-made sperm. But during parthenogenesis, the egg instead binds together with other cells, forming a self-made egg.
Parthenotes can be singular, although sex depends on their species. For snakes such as boas and pythons, all parthenotes are female: their chromosomes are XX.
Unlike humans, birds have an egg, not sperm, which controls the sex of the embryo. As a result, scientists use a different method for naming their chromosomes. The female has ZW chromosomes, while the male has ZZ. If a woman gives birth randomly, then she can make a WW or ZZ embryo. But WW in birds cannot produce a young child, so all birds that survive to egg and beyond must be ZZ-males.
Usually, parthenogenesis occurs among women when there is no male partner. Ideally, this system allows the female to retain the gene until a suitable male comes along. But that’s not the right answer, says Booth. Because the egg mixes with a cell that has the same chromosomes, there are almost no different types of genes in the offspring from which they are derived. “In the whole area of its parasites, it does not have a variety of species, which is why we often see germs, animals do not do well for a long time,” he says. “They’re the most born you can be.”
But Demian Chapman, director of the Sharks and Rays Conservation Program at Mote Marine Laboratory in Florida, who has identified several different aspects of sharks and rays, says that while it is possible to have genetic defects, survivors can be free. among other deadly species found in species. “They cannot carry them, because if they do, they would die because they have no one to pay for them,” he says.