This is because since she is just the carrier and she is healthy, her genotype will be heterozygous with the allele for Nieman pick up disease recessive because it's effect is been masked by the allele that is not Nieman pick up disease because it is dorminant. Therefore , the allele for healthiness is dorminant over allele for Nieman disease.
A VIRUS consist of RNA or DNA Genes and are therfore known as RNA Virus or DNA Virus
RNA genomes is seen in majority of Viruses. Bacteriophages possess double stranded DNA genomes whereas Plant viruses possess single stranded RNA genomes
Viral genomes are linear, as we see in the adenoviruses and circular as we see in the polyomaviruses
The shape of the genome is not determined by the type of nucleic acid present in it.
The genome is often divided into separate parts, in RNA and DNA viruses, and thus we called as segmented.
