Simplify the Following Complex Fraction $\frac { \frac { 3 } { 5 } + \left( - \frac { 2 } { 9 } \right) } { 1 \frac { 1 } { 2 } }$

question 20

Multiple Choice

Simplify the following complex fraction. $\frac { \frac { 3 } { 5 } + \left( - \frac { 2 } { 9 } \right) } { 1 \frac { 1 } { 2 } }$

• A) \(\frac { 34 } { 137 }\)
• B) \(\frac { 34 } { 135 }\)
• C) \(\frac { 17 } { 70 }\)
• D) \(\frac { 17 } { 69 }\)
• E) \(\frac { 17 } { 30 }\)

---

Definitions:

Proto-Oncogenes

Normal genes that can become oncogenes (cancer-causing genes) if mutated, typically involved in cell growth and division.

Oncogenes

Genes that have the potential to cause cancer, usually through mutations or increased expression leading to the uncontrolled growth of cells.

Totipotent Stem Cell

Cells that have the potential to differentiate into any type of cell in an organism, including embryonic and extraembryonic tissues.

Pluripotent Stem Cell

A stem cell that has the potential to differentiate into any of the three germ layers: endoderm, mesoderm, or ectoderm, thus capable of giving rise to any cell type of the body.