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, made up of nucleotides.

Front

What are the building blocks of DNA?

Back

The building blocks of DNA are nucleotides, which consist of a deoxyribose sugar, a phosphate group, and a nitrogenous base.

Front

What are the four nitrogenous bases in DNA?

Back

The four nitrogenous bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).

Front

What is the base pairing rule in DNA?

Back

In DNA, adenine pairs with thymine (A-T) and cytosine pairs with guanine (C-G).

Front

What sugar is found in DNA?

Back

The sugar found in DNA is deoxyribose.

Front

Who discovered the double helix structure of DNA?

Back

James Watson and Francis Crick are credited with discovering the double helix structure of DNA.

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 a DNA nucleotide composed of?

Back

A DNA nucleotide is composed of a deoxyribose sugar, a phosphate group, and a nitrogenous base.

Front

What is the role of the phosphate group in DNA?

Back

The phosphate group in DNA links the sugar of one nucleotide to the sugar of another, forming the backbone of the DNA strand.

Front

What is the significance of Chargaff's rules?

Back

Chargaff's rules state that in DNA, the amount of adenine equals thymine and the amount of cytosine equals guanine, which supports the base pairing mechanism.