DNA Structure

Front

What is DNA?

Back

DNA (Deoxyribonucleic Acid) is the molecule that carries the genetic instructions for life. It is composed of two strands that coil around each other to form a double helix.

Front

What are the building blocks of DNA?

Back

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

Front

Name 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 base pairing in DNA?

Back

Base pairing in DNA refers to the specific pairing of nitrogenous bases: Adenine pairs with Thymine (A-T) and Cytosine pairs with Guanine (C-G).

Front

What is the significance of the sequence of nitrogen bases in DNA?

Back

The sequence of nitrogen bases in DNA determines the traits that an organism will possess.

Front

How do you find the complementary DNA strand?

Back

To find the complementary DNA strand, replace each base with its pair: A with T, T with A, C with G, and G with C.

Front

What is the structure of DNA?

Back

DNA has a double helix structure, consisting of two long strands of nucleotides twisted around each other.

Front

What role does DNA play in heredity?

Back

DNA carries genetic information that is passed from parents to offspring, determining inherited traits.

Front

What is a mutation in DNA?

Back

A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins.

Front

What is the function of enzymes in DNA replication?

Back

Enzymes facilitate the unwinding of the DNA double helix and the synthesis of new complementary strands during DNA replication.