Gynandromorphy Gynandromorphy is an organism that contains both male and female characteristics.

Chicken? ½ rooster ½ hen Clinton says chickens with this mix of cells are rare, but maybe not as rare as people think. "If they are the same color, for example, you might think well, that's a funny-looking chicken. But you wouldn't think it's half-male and half- female," he says. Up until now, scientists who study sexual development assumed that in birds and mammals hormones were by far the more important signal. But the chicken study puts that in doubt Chickens have male and female sex chromosomes. And these sex chromosomes tell a chicken which one to be. The chickens were a mix of male and female cells Only about 1 in 10,000 chickens are born as gynandromorphy – Male features (a rooster's comb and a defensive leg spur) – Female features (dainty, hen like features ) Found that the chickens' cells were normal. What was strange, however, was that male cells made up one half of the body, and female cells composed the other half. The scientists believe gynandromorphy are created when a chicken egg becomes fertilized by two sperm.

Insect Each cell division in insects decides what a cell will become The decisions that are made with the earliest cell divisions are as follows:  First division (of zygote) - determines left and right sides  Second division - determines front and back (at this point, there would be four cells, a front left, a front right, a back left and a back right)  Third division - determines top from bottom (at this point, there would be eight cells, a front upper left, a front lower left, and so on)

Gynandromorphy are known to exist in other bird species, such as zebra finches, pigeons, and parrots. A clear example in birds is the gynandromorphy Zebra Finch. These birds have lateralized brain structures in the face of a common steroid signal, providing strong evidence for a non-hormonal primary sex mechanism regulating brain differentiation. It's likely that this occurs in all birds species, but it's not always obvious because males and females of many species often look similar.bird Birds

LOBSTER: ½ COOKED ½ ALIVE Half of the animal is mottled brown, while the other is bright orange—the color lobsters turn after they've been boiled. lobsters usually sport a combination of yellow, red, and blue pigments. But the animals grow symmetrically, with each half of the body developing independently of the other. half of the lobster's shell was lacking the blue pigment, giving it the appearance of having been cooked to a turn Half of the animal is mottled brown, while the other is bright orange—the color lobsters turn after they've been boiled. lobsters usually sport a combination of yellow, red, and blue pigments. But the animals grow symmetrically, with each half of the body developing independently of the other. half of the lobster's shell was lacking the blue pigment, giving it the appearance of having been cooked to a turn

What is Gynandromorphy? The term "gynandromorphy" literally means part female and part male Bilateral asymmetry: one side female and one side male Mosaic: a case in which the two sexes aren't defined as clearly. Bilateral gynandromorphy arises very early in development, typically when the organism has between 8 and 64 cells. Later the gynandromorphy is mosaic.