DNA Structure

Front

What holds the two strands of the DNA double helix together?

Back

Hydrogen bonds.

Front

Which sequence of DNA bases would pair with the strand ATG TGA CAG?

Back

TAC ACT GTC.

Front

What is the basic unit of DNA called?

Back

Nucleotide.

Front

What are the correct complementary base pairs in DNA?

Back

A-T, G-C.

Front

Which part of the DNA molecule contains the genetic code?

Back

Nitrogenous bases.

Front

What are the four nitrogenous bases found in DNA?

Back

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

Front

What is the structure formed by two intertwined strands of DNA called?

Back

Double helix.

Front

What type of bond connects the sugar and phosphate backbone of DNA?

Back

Phosphodiester bond.

Front

What is the role of DNA polymerase in DNA replication?

Back

It synthesizes new DNA strands by adding nucleotides complementary to the template strand.

Front

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

Back

They indicate the directionality of the DNA strand, which is important for replication and transcription.