BadFishBio_DNA Structure/Function & Replication

Front

What is the structure of DNA?

Back

DNA is a double helix made up of two strands of nucleotides, which consist of a sugar, a phosphate group, and a nitrogenous base.

Front

What are the four nitrogenous bases in DNA?

Back

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

Front

What is the base pairing rule in DNA?

Back

Adenine pairs with Thymine (A-T) and Cytosine pairs with Guanine (C-G).

Front

What is DNA replication?

Back

DNA replication is the process by which a cell makes an exact copy of its DNA before cell division.

Front

What is the role of DNA polymerase in replication?

Back

DNA polymerase is an enzyme that synthesizes new DNA strands by adding nucleotides complementary to the template strand.

Front

What is the significance of the semi-conservative model of DNA replication?

Back

In the semi-conservative model, each new DNA molecule consists of one original strand and one newly synthesized strand.

Front

What occurs during interphase?

Back

During interphase, the cell grows, performs its normal functions, and replicates its DNA in preparation for cell division.

Front

What is a codon?

Back

A codon is a sequence of three nucleotides in mRNA that corresponds to a specific amino acid.

Front

How many nucleotides are in a codon?

Back

A codon is made up of three nucleotides.

Front

What is the complementary DNA strand for the sequence ACT GGC TAC?

Back

The complementary strand is TGA CCG ATG.