DNA, RNA and Transcription

What are the repeating units in DNA known as?

• Ribose

• Nucleotides

• Uracil

• Thymine

What are the three parts that make up a nucleotide?

• Deoxyribose, Phosphate, Base

• Ribose, Phosphate, Base

• Deoxyribose, Phosphene, Base

• Ribose, Phosphate, Deoxyribose

Which bases form complementary base pairs in DNA

• G - C, A - U

• G - A, T - C

• G - U, T-A

• A - T, C - G

What type of bond forms between the complementary bases on DNA?

• Phosphodiester Bond

• Covalent Bond

• Hydrogen Bond

• Ionic Bond

What type of bond forms between the sugar and phosphate molecules adjoining nucleotides?

• Phosphodiester Bond

• Glycosidic Bond

• Hydrogen Bond

• Ionic Bond

What is the name of the enzyme that forms this bond during DNA replication?

• RNA Polymerase

• Helicase

• Ligase

• DNA Polymerase

What is the DNA structure described as?

• Single Helix

• Double Helix

• Triple Helix

• Single Stranded

In RNA the base Uracil replaces which base found in DNA?

• Adenine

• Thymine

• Cytosine

• Guanine

Which sugar is found in an RNA nucleotide?

• Ribose

• Deoxyribose

• Hexose

• Ribulose

What molecule is formed in transcription?

• DNA

• mRNA

• tRNA

• polypeptide