To Show That DNA Is the "Transforming Principle," Avery, MacLeod

question 111

Multiple Choice

To show that DNA is the "transforming principle," Avery, MacLeod, and McCarty showed that DNA could transform nonvirulent strains of pneumococcus. Their hypothesis was strengthened by their demonstration that

• A) enzymes that destroy proteins also destroy transforming activity.
• B) enzymes that destroy nucleic acids also destroy transforming activity.
• C) enzymes that destroy complex carbohydrates also destroy transforming activity.
• D) the transforming activity is destroyed by boiling.
• E) other strains of bacteria also can be transformed successfully.

Know the density of common substances, such as water.

Understand the SI unit of time.

Understand the principles and calculations of density in physical objects.

Identify the role of physical characteristics of soil in forensic science.

---

Definitions:

Charles I

King of England, Scotland, and Ireland from 1625 until his execution in 1649, whose reign was marked by religious and constitutional conflicts leading to the English Civil War.

Constitutional Crisis

A situation that arises when there is a serious disagreement about the interpretation or application of a constitution, leading to a standoff between different branches of government or levels of authority.

Charles I

A 17th-century king of England, Scotland, and Ireland, whose conflicts with parliament led to the English Civil War and ultimately his execution in 1649.

Anglican Book

Refers to a book of liturgy or religious doctrine used by the Anglican Church, such as the Book of Common Prayer.