DNA Structure

Front

What is the structure of DNA?

Back

DNA is a double helix formed by two strands of nucleotides twisted around each other.

Front

What are the four nitrogenous bases in DNA?

Back

Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).

Front

What is the role of guanine in DNA?

Back

Guanine is one of the four nitrogenous bases that pair with cytosine in the DNA structure.

Front

What is the significance of the 5' end of a DNA strand?

Back

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

Front

What are purines?

Back

Purines are a type of nitrogenous base that includes adenine (A) and guanine (G). They have a double-ring structure.

Front

What are pyrimidines?

Back

Pyrimidines are a type of nitrogenous base that includes cytosine (C) and thymine (T). They have a single-ring structure.

Front

How do adenine and thymine pair in DNA?

Back

Adenine pairs with thymine through two hydrogen bonds.

Front

How do cytosine and guanine pair in DNA?

Back

Cytosine pairs with guanine through three hydrogen bonds.

Front

What is the backbone of the DNA structure made of?

Back

The backbone of DNA is made of alternating sugar (deoxyribose) and phosphate groups.

Front

What is the function of DNA?

Back

DNA stores genetic information and provides instructions for the development and functioning of living organisms.