DNA Replication

Front

What are the four nitrogen bases found in DNA?

Back

Adenine, Thymine, Cytosine, and Guanine.

Front

What two molecules form the sides (backbone) of the DNA ladder?

Back

Deoxyribose sugar and phosphate.

Front

What is the complementary DNA sequence for the strand ATG TGA CAG?

Back

TAC ACT GTC.

Front

In which phase of the cell cycle does DNA replication occur?

Back

S phase.

Front

What do the letters in a DNA diagram represent?

Back

Molecular bases.

Front

What is the role of DNA helicase in DNA replication?

Back

DNA helicase unwinds the double helix and separates the two strands of DNA.

Front

What is the function of DNA polymerase during 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

The 5' end has a phosphate group, and the 3' end has a hydroxyl group; DNA synthesis occurs in the 5' to 3' direction.

Front

What is the difference between leading and lagging strands in DNA replication?

Back

The leading strand is synthesized continuously, while the lagging strand is synthesized in short segments called Okazaki fragments.

Front

What is semi-conservative replication?

Back

Semi-conservative replication is the process where each new DNA molecule consists of one original strand and one newly synthesized strand.