Amoeba Sisters Video Recap: DNA Replication

Front

What is DNA replication?

Back

The process by which a cell makes an exact copy of its DNA, ensuring that each new cell has the same genetic information.

Front

What is the role of Helicase in DNA replication?

Back

Helicase is an enzyme that unzips the double-stranded DNA into two single strands, allowing replication to occur.

Front

What are the four nitrogenous bases in DNA?

Back

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

Front

How do adenine and thymine pair in DNA?

Back

Adenine pairs with thymine through two hydrogen bonds.

Front

How do cytosine and guanine pair in DNA?

Back

Cytosine pairs with guanine through three hydrogen bonds.

Front

What is the function of DNA Polymerase?

Back

DNA Polymerase is the enzyme that builds a new strand of DNA by adding nucleotides complementary to the template strand.

Front

What is the significance of the Nucleus in a cell?

Back

The nucleus is the membrane-bound organelle that contains the cell's genetic material (DNA) and controls cellular activities.

Front

What is a nucleotide?

Back

A nucleotide is the basic building block of DNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

Front

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

Back

The leading strand is synthesized continuously in the direction of the replication fork, while the lagging strand is synthesized in short segments (Okazaki fragments) away from the fork.

Front

What are Okazaki fragments?

Back

Short segments of DNA synthesized on the lagging strand during DNA replication.