Practice question
Question
Genome is defined as:
Explanation
Definition of genome extends beyond gene count to total hereditary information carried by cell. It encompasses all chromosomes, both nuclear and extranuclear, including protein-coding genes, non-coding RNAs, repetitive sequences, regulatory elements, introns and organellar DNA. While sum of genes describes transcriptome coding potential, sum of DNA may include transient extrachromosomal elements. Sum of chromosomes reflects karyotype count. Comprehensive term sum of all genetic material captures complete haploid or diploid DNA complement inherited by organism, including mitochondrial and chloroplast genomes and variable repetitive fraction that shapes genome size diversity.
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