Understand DNA Structure and Replication

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 building blocks of DNA?

Back

The building blocks of DNA are nucleotides.

Front

What are the three components of a nucleotide?

Back

A nucleotide consists of a pentose sugar, a nitrogenous base, and a phosphate group.

Front

What is the function of the phosphate group in DNA?

Back

The phosphate group links nucleotides together, forming the backbone of the DNA strand.

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

Which nitrogenous bases pair together in DNA?

Back

Adenine pairs with thymine (A-T) and cytosine pairs with guanine (C-G).

Front

What does it mean for DNA strands to be anti-parallel?

Back

Anti-parallel means that the two strands of DNA run in opposite directions.

Front

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

Back

The double helix structure allows for the efficient storage of genetic information and the ability to replicate.

Front

How does DNA replication occur?

Back

DNA replication occurs through the unwinding of the double helix and the synthesis of new complementary strands.

Front

What enzyme is responsible for synthesizing new DNA strands during replication?

Back

DNA polymerase is the enzyme responsible for synthesizing new DNA strands.