DNA Structure and Replication

Front

What does DNA stand for?

Back

Deoxyribose Nucleic Acid

Front

What makes up the SIDES of a DNA ladder?

Back

Deoxyribose sugars & phosphates

Front

What type of bond joins nitrogenous bases in DNA?

Back

Hydrogen bonds

Front

According to the Base Pair Rule, if a DNA molecule contains 2 cytosines, how many guanines will it contain?

Back

2

Front

What is the correct complementary nucleotide sequence for AAA - GTA - CCC?

Back

TTT - CAT - GGG

Front

What are the four nitrogenous bases found in DNA?

Back

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

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

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 function of helicase in DNA replication?

Back

Helicase unwinds the DNA double helix, separating the two strands.

Front

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

Back

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