DNA Structure

Front

Number 2 in the diagram is a ________. Options: phosphoric acid molecule, phosphate group, ribose sugar, deoxyribose sugar.

Back

phosphate group

Tags

1a backbone

Front

Number 3 in the diagram is a ________. Options: phosphoric acid molecule, phosphate group, ribose sugar, deoxyribose sugar.

Back

deoxyribose sugar

Tags

1a backbone

Front

Number 4 is a ________ molecule.

Back

thymine

Tags

1b bases and pairing

Front

Number 5 is a ________ molecule.

Back

cytosine

Tags

1b bases and pairing

Front

Look at the diagram. What does number 1 represent?

a sulfate

,

a nucleic acid

,

an ionic bond

,

a hydrogen bond

Back

a hydrogen bond

Tags

1c hydrogen bond

Front

Which of the following does NOT describe DNA?

• DNA is in the nucleus of every cell except red blood cells.
• DNA can be found in mitochondria and chloroplasts.
• The DNA code is exactly the same in every type of cell.
• DNA is composed of the nitrogen bases adenine, cytosine, guanine and uracil.

Back

DNA is composed of the nitrogen bases adenine, cytosine, guanine and uracil.

Tags

2 DNA function

Front

The Base-Pair Rule states that

Back

A only bonds to T, and C only bonds to G

Tags

1b bases and pairing

Front

The bases attach to the DNA backbone at the:

phosphates

,

deoxyribose sugars

,

hydrogen bonds

,

ribose sugars

Back

deoxyribose sugars

Tags

1d base to sugar

Front

The process of copying DNA is called

Back

replication

Tags

3 replication

Front

The process of copying DNA is

Back

a semi-conservative process because one new strand is newly created while the other is an original strand.

Tags

3 replication