What term refers to the complete set of genetic material in an organism, including all genes and noncoding sequences?

What term refers to the complete set of genetic material in an organism, including all genes and noncoding sequences?

• A. Phenotype
• B. Genome
• C. Ancient DNA
• D. Recessive

Answer: (B)

Genomes are the complete set of genetic material in an organism, including all genes and noncoding sequences. This means every bit of DNA (or RNA in some viruses) present in the cell—coding regions that produce proteins and the noncoding regions that regulate when and how those genes are expressed. Grasping the idea of the genome gives you the full blueprint of an organism, not just the parts that code for proteins or traits you can see. This is what sets genome apart from phenotype, which refers to the observable traits; from ancient DNA, which is genetic material recovered from long-deceased samples and may not reflect the organism’s full present genome; and from recessive, which describes a pattern of allele contribution rather than the entire genetic content. In humans, you’d consider both the nuclear genome and the mitochondrial genome together to understand the complete genetic material of cellular life.

Genomes are the complete set of genetic material in an organism, including all genes and noncoding sequences. This means every bit of DNA (or RNA in some viruses) present in the cell—coding regions that produce proteins and the noncoding regions that regulate when and how those genes are expressed. Grasping the idea of the genome gives you the full blueprint of an organism, not just the parts that code for proteins or traits you can see. This is what sets genome apart from phenotype, which refers to the observable traits; from ancient DNA, which is genetic material recovered from long-deceased samples and may not reflect the organism’s full present genome; and from recessive, which describes a pattern of allele contribution rather than the entire genetic content. In humans, you’d consider both the nuclear genome and the mitochondrial genome together to understand the complete genetic material of cellular life.