Viral Genetics Quiz

Nucleotide sequence and antigenic differences

Mutation

Mutations in essential genes

<p>Recombination</p> Signup and view all the answers

<p>New variants of viral strains can be identified by their nucleotide sequence, antigenic differences, or differences in their structural or functional properties. These methods help in characterizing the genetic and phenotypic differences between new viral strains and their parental or wild-type viruses.</p> Signup and view all the answers

<p>Living host cell</p> Signup and view all the answers

<p>Mutations in viral genomes are significant as they cause frequent changes in the nucleic acids, leading to the production of new viral strains with properties different from the parental or wild-type virus. These mutations contribute to the variation in genomic structure and the emergence of new viral variants, impacting viral evolution and adaptation to host environments.</p> Signup and view all the answers

<p>Lethal mutations in viruses are mutations that occur in essential genes, and they can result in the loss of viral viability or function. These mutations are significant as they provide insights into the genetic determinants of viral survival and pathogenicity, and they contribute to our understanding of viral evolution and adaptation.</p> Signup and view all the answers

<p>Viral genetics refers to the study of genetic mechanisms and variation in viruses. Viruses, like other living beings, obey the laws of genetics, demonstrating variation in their genomic structure through mutations and recombination. The study of viral genetics provides insights into viral evolution, genetic diversity, and the interactions between viruses and their host cells.</p> Signup and view all the answers

<p>Viruses show variation in their genomic structure primarily through mutations and recombination. Mutations occur spontaneously and readily in viral genomes, leading to frequent changes in nucleic acids and the production of new viral strains. Recombination also contributes to genetic variation by exchanging genetic material between different viral strains.</p> Signup and view all the answers