A Sample of Wood from an Egyptian Mummy Case Gives

question 41

Multiple Choice

A sample of wood from an Egyptian mummy case gives a ¹⁴C count of 9.4 cpm/gC (counts per minute per gram of carbon) . How old is the wood? (The initial decay rate of ¹⁴C is 15.3 cpm/gC, and its half-life is 5730 years.)

• A) 3.5 × 10³ years
• B) 4.0 × 10³ years
• C) 5.1 × 10³ years
• D) 1.7 × 10³ years
• E) 2.8 × 10³ years

---

Definitions:

Drug-resistant Bacteria

Bacteria that have developed resistance to antibiotics, making infections harder to treat and increasing the risk of disease spread, morbidity, and mortality.

Epigenetic Mark

Modifications in DNA and histone proteins that affect the expression of genes without altering their sequence.

Domestication

The process of converting wild plants and animals into forms that humans can care for and cultivate.

Epigenetic Molecules

Molecules that play a critical role in regulating the expression of genes without altering the DNA sequence.