DNA Exit Ticket

Front

What is the structure represented by the #2 in the DNA diagram?

Back

Hydrogen bonds are the structures that hold the two strands of DNA together.

Front

In a molecule of double-stranded DNA, the amount of adenine present is always equal to the amount of which other base?

Back

Thymine is always present in equal amounts to adenine in double-stranded DNA.

Front

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

Back

The complementary sequence is TAC ACT GTC.

Front

What shows the correct complementary base pairing for DNA?

Back

The correct pairings are T - A and G - C.

Front

What determines the code of a DNA molecule?

Back

The order (sequence) of the nitrogen bases determines the code of a DNA molecule.

Front

What are the building blocks of DNA?

Back

Nucleotides are the building blocks of DNA.

Front

What are the three components of a nucleotide?

Back

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

Front

What is the role of DNA polymerase in DNA replication?

Back

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

Front

What is the function of the hydrogen bonds in DNA?

Back

Hydrogen bonds between nitrogen bases hold the two strands of DNA together.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains thymine, while RNA is single-stranded and contains uracil instead of thymine.