Chromosomes in a Fruit Fly Egg (IMAGE) Instituto Gulbenkian de Ciencia Caption Maternal (?) and paternal (?) chromosomes in a recently fertilized fruit fly egg. DNA is in blue; the paternal chromosomes are also labelled in green. Credit Paulo Navarro Costa Usage Restrictions This image can only be used to illustrate this article. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.