The Human Genome Encodes About 21,000 Protein-Coding Genes

question 58

Multiple Choice

The human genome encodes about 21,000 protein-coding genes.Approximately how many such genes does the typical differentiated human cell express at any one time?

• A)21,000-all of them
• B)between 18,900 and 21,000-at least 90% of the genes
• C)between 5000 and 15,000
• D)less than 2100

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