Based on the Work of Thomas Cech and Sidney Altman,why

question 1

Multiple Choice

Based on the work of Thomas Cech and Sidney Altman,why is RNA thought to have been the first type of genetic material?

• A)RNA can be both a substrate and an enzyme.
• B)RNA is made of nucleotides.
• C)RNA is single stranded and more simple than DNA.
• D)RNA can be converted into DNA.
• E)RNA contains uracil which was abundant in the early atmospherE.

---

Definitions:

Return on Equity

A measure of financial performance calculated by dividing net income by shareholders' equity, indicating how efficiently a company uses investments to generate earnings growth.

Net Profit

The remaining income after all expenses, taxes, and costs have been deducted from a company's total revenue.

Owner's Equity

The portion of a company's total value that belongs to its owners or shareholders, often referred to as net assets.

Cash-flow Problems

Financial issues arising from an imbalance between the cash entering and exiting a business, potentially impairing its operations.