DNA Unit Exam Version D

Which of the following statements about DNA is true?

• DNA is made of one strand.

• Adenine pairs with thymine.

• DNA is only found in animals.

Unlike DNA, RNA contains:

• Uracil

• Thymine

• Cytosine

What is the main job of DNA?

• To store energy

• To direct protein production

• To provide structure to the cell

What is the process of making mRNA from DNA called?

• Translation

• Replication

• Transcription

During which phase of the cell cycle does DNA replication happen?

• G1 phase

• S phase

• M phase

How do cells repair wounds?

• They divide.

• They become larger.

• They stop growing.

What is mitosis?

• A process of making energy

• A process of cell division

• A process of making food

In which part of the cell does protein synthesis occur?

• Nucleus

• Ribosome

• Mitochondria

What are the building blocks of proteins?

• Amino acids

• Nucleotides

• Sugars

What is the role of tRNA in protein synthesis?

• To bring amino acids to the ribosome

• To carry DNA

• To create energy