the core of the virus is the capsid. The genome surrounds the capsid, and the virus may or may not have an outer layer called an envelope. the genome is surrounded by a protein coat called a capsid, which may or may not be surrounded by an envelope.
Can identical twins have different hair and eye color and still be identical? Me and my twin sister are almost exactly identical in every way except our hair and eye color. I have blond hair and gray-blue eyes, and she has light brown hair and gray-green eyes. Our doctor says we are identical but no one thinks we are because we have different an eye colors. So if anyone knows if identical twins can be identical even if they have different hair and eye colors i'd love to know what you think. Update: we are both girls by the way.
The difference between fraternal and identical twins is that fraternal twins are two separate eggs fertilized by two separate sperm to form two separate embryos and then make two separate babies.Identical twins are formed when one fertilized egg divides into two separate embryos to make two babies.raternal, or dizygotic, twins happen when Mom releases two eggs (either at the same or different times during her cycle), and different sperm fertilize each egg. Fraternal twins share up to 50% of their genes, and are no more alike or different than any two siblings would be.