DNA Structure and Replication

Front

What type of bond joins nitrogenous bases in DNA?

Back

Hydrogen bonds.

Front

Which enzyme adds free nucleotides to the replicating DNA?

Back

DNA polymerase.

Front

Why is DNA important?

Back

It serves as the blueprint for traits of all living things.

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 CCC - ACT - GGG?

Back

GGG - TGA - CCC.

Front

What are the four nitrogenous bases in DNA?

Back

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

Front

What is the structure of DNA?

Back

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

Front

What is the function of DNA helicase?

Back

DNA helicase unwinds the DNA double helix during replication.

Front

What is the role of DNA ligase?

Back

DNA ligase joins Okazaki fragments on the lagging strand during DNA replication.

Front

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

Back

They indicate the directionality of the DNA strands, which is crucial for replication.