DNA Structure and Replication

Front

What are the complementary bases that pair with adenine (A) in DNA?

Back

Thymine (T)

Front

What are the complementary bases that pair with cytosine (C) in DNA?

Back

Guanine (G)

Front

What is the structure of DNA?

Back

DNA is a double helix composed of two strands of nucleotides.

Front

What are the three components of a nucleotide?

Back

A phosphate group, a sugar (deoxyribose), and a nitrogenous base.

Front

Where is DNA located in prokaryotic cells?

Back

In the cytoplasm, as prokaryotes do not have a nucleus.

Front

What is the role of DNA polymerase in DNA replication?

Back

DNA polymerase synthesizes new DNA strands by adding nucleotides complementary to the template strand.

Front

What is the significance of the 5' and 3' ends of a DNA strand?

Back

They indicate the directionality of the DNA strand, which is important for replication and transcription.

Front

How does DNA replication ensure accuracy?

Back

Through the proofreading function of DNA polymerase and mismatch repair mechanisms.

Front

What is the difference between DNA and RNA?

Back

DNA contains deoxyribose sugar and thymine, while RNA contains ribose sugar and uracil.

Front

What is a mutation in DNA?

Back

A change in the nucleotide sequence of DNA that can lead to changes in protein synthesis.