The X-Ray Diffraction Photography of Rosalind Franklin and Maurice Wilkins

question 67

Multiple Choice

The X-ray diffraction photography of Rosalind Franklin and Maurice Wilkins was critical evidence

• A)indicating that DNA has a double helix structure.
• B)showing the bases of DNA were held together by hydrogen bonds.
• C)showing equal numbers of purines and pyrimidines.
• D)revealing the structure of the deoxyribose sugar.
• E)of the location of each adenine,guanine,cytosine,and thymine.

---

Definitions:

Environmental Problem

An issue arising from human activities or natural processes that negatively impacts the natural environment, leading to ecological imbalance or degradation.

Demographic Transition

A model describing how the birth and death rates in a population change from high to low levels as a country develops economically.

Demographic Transition Theory

Argument that countries pass through a consistent sequence of population patterns linked to the degree of development and ending with a low birth and death rate.

Social Change

Significant alteration over time in behavior patterns and cultural values and norms of a society.