In flies the process is inverted: male cells up-regulate the transcription of the single chromosome X by two-fold to generate the same gene output as females. The dosage compensation process in ...

In extraordinary cases, some animals have each chromosome in very particular ... male and female sections of the same feather. But bilateral gynandromorphism is something special.

Researchers have uncovered a "selfish" X chromosome in the fruit fly Drosophila testacea that manages to distort inheritance in both sperm and eggs. "But until now, we've only ever seen a ...

producing a bilateral gynandromorph, or occur in a mosaic pattern across the body. The condition can result from sex-chromosome aneuploidy (that is, aberrant loss or gain of a sex chromosome ...

The bird in question is what is known as a bilateral gynandromorph northern cardinal ... In birds, the sex chromosomes are called Z and W (in mammals it is X and Y). Female birds have a single ...

This is because the sex chromosomes are ancient in many species, including in model organisms such as humans, mice and Drosophila melanogaster, which has hindered reconstruction of the ancestral ...

This individual is only the second of the species ever recorded exhibiting this trait—called bilateral gynandromorphism ... while males have two Z chromosomes. Gynandromorphism could occur ...

The anomaly is known as a bilateral gynandromorph. In plain language ... In mammals, he says, males have one copy of each sex chromosome (X and Y) while females have two copies of the X chromosome.

Known as a bilateral gynandromorph ... as well. Gynandromorphism in birds likely occurs when the egg from which the bird developed had two different sex chromosomes instead of just one, according ...

Ornithologists call birds like this one "bilateral gynandromorphs" — meaning ... It involves a cocktail of chromosomes, which work slightly differently than the X and Y sex chromosomes that ...