Enzymes and DNA Synthesis

Front

What does semi-conservative DNA replication mean?

Back

It means that each new DNA molecule consists of one original strand and one newly synthesized strand.

Front

In double-stranded DNA, which base is always equal in amount to adenine?

Back

Thymine.

Front

What are nucleotide base pairs?

Back

They are the pairs of nitrogenous bases (adenine-thymine and guanine-cytosine) that form the rungs of the DNA ladder.

Front

What is the role of DNA Helicase in DNA replication?

Back

DNA Helicase unwinds the double helix structure of the DNA.

Front

What is the function of Primase in DNA synthesis?

Back

Primase lays down an RNA primer to initiate the synthesis of new DNA strands.

Front

What does DNA Polymerase do during DNA replication?

Back

DNA Polymerase builds new DNA strands by adding nucleotide bases complementary to the template strand.

Front

What is the role of Ligase in DNA replication?

Back

Ligase connects and seals the gaps between Okazaki fragments on the lagging strand.

Front

What are the components of a nucleotide?

Back

A nucleotide consists of a phosphate group, a sugar (deoxyribose in DNA), and a nitrogenous base.

Front

What is the structure of DNA?

Back

DNA is a double helix composed of two strands of nucleotides twisted around each other.

Front

What are the four nitrogenous bases in DNA?

Back

Adenine, Thymine, Guanine, and Cytosine.