Replication, Transcription and Translation Review

Carries the genetic code to the ribosome

• mRNA
• tRNA
• rRNA
• DNA

Which 2 molecules form the sides of the DNA ladder?

• deoxyribose and adenine
• deoxyribose and a hydrogen bond
• sugar and the nucleus
• deoxyribose (sugar) and phosphate

Which of the following is a nucleotide found in DNA?

• ribose + phosphate group + uracil
• deoxyribose + phosphate group + uracil
• deoxyribose + phosphate group + cytosine
• ribose + phosphate group + thymine

Because of base pairing in DNA, the percentage of

• adenine molecules in DNA is about equal to the percentage of guanine molecules.
• purines in DNA is much greater than the percentage of pyrimidines.
• cytosine molecules in DNA is much greater than the percentage of guanine molecules.
• pyrimidines in DNA is about equal to the percentage of purines.

During DNA replication, a DNA strand that has the bases CTAGGT produces a strand with the bases

• GAUCCA.
• AGCTTG.
• GATCCA.
• TCGAAC.

What happens during the process of translation?

• The cell uses information from messenger RNA to produce proteins.
• Transfer RNA is made from messenger RNA.
• Copies of DNA molecules are made.
• Messenger RNA is made from DNA.

What type of macro-molecules are DNA and RNA?

• Protein
• Carbohydrate
• Nucleic Acid
• Lipid

In eukaryotes, DNA is located in the

• cytoplasm
• nucleus
• cell membrane
• ribosome

Which of the following would copmlete the mRNA strand for CAG (DNA)

• CAG
• AUG
• GUC
• UAC

An RNA molecule is

• double helix
• always double stranded
• usually double stranded
• single stranded