AP Biology Unit 6

Front

What is the role of Primase in DNA replication?

Back

Primase synthesizes a short RNA primer that provides a starting point for DNA polymerase to begin DNA synthesis.

Front

What are plasmids?

Back

Plasmids are small, circular DNA molecules found in bacteria that can replicate independently of chromosomal DNA.

Front

What is a nucleotide?

Back

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

Front

Can a gene transferred from one organism to another function?

Back

True, a gene transferred from one organism to another can function in the new host organism.

Front

What is recombinant DNA?

Back

Recombinant DNA is formed by inserting a gene of interest into a bacterial DNA loop, allowing for the expression of that gene.

Front

What is the function of DNA polymerase?

Back

DNA polymerase adds new nucleotides to a growing DNA strand during DNA replication.

Front

What is the role of DNA ligase?

Back

DNA ligase binds together Okazaki fragments on the lagging strand during DNA replication.

Front

What is the function of helicase in DNA replication?

Back

Helicase unwinds the DNA double helix, separating the two strands to allow replication to occur.

Front

What is the significance of the 5' to 3' direction in DNA synthesis?

Back

DNA synthesis occurs in the 5' to 3' direction, meaning nucleotides are added to the 3' end of the growing strand.

Front

What are Okazaki fragments?

Back

Okazaki fragments are short segments of DNA synthesized on the lagging strand during DNA replication.