DNA Structure and Function Concepts

Front

What is the structure of DNA?

Back

DNA is structured as a double-helix, consisting of two strands that wind around each other.

Front

What are the four nitrogenous bases in DNA?

Back

The four nitrogenous bases in DNA are adenine, guanine, cytosine, and thymine.

Front

What is the role of ribosomes in a cell?

Back

Ribosomes synthesize proteins by translating messenger RNA (mRNA) into polypeptide chains.

Front

What does the term '5'' end' refer to in DNA?

Back

The '5'' end' of a DNA strand refers to the end of the strand that has a phosphate group attached to the fifth carbon of the sugar.

Front

What is a pyrimidine?

Back

A pyrimidine is a type of nitrogenous base that has a single-ring structure; examples include cytosine, thymine, and uracil.

Front

What is a purine?

Back

A purine is a type of nitrogenous base that has a double-ring structure; examples include adenine and guanine.

Front

How do adenine and thymine pair in DNA?

Back

Adenine pairs with thymine through two hydrogen bonds in the DNA double-helix.

Front

How do guanine and cytosine pair in DNA?

Back

Guanine pairs with cytosine through three hydrogen bonds in the DNA double-helix.

Front

What is the function of DNA?

Back

The primary function of DNA is to store and transmit genetic information that guides the development and functioning of living organisms.

Front

What is the significance of the double-helix structure of DNA?

Back

The double-helix structure of DNA allows for efficient storage of genetic information and provides a mechanism for replication.