DNA RNA Protein Synthesis 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.

A ____ is a small ring of DNA found in a bacterial cell.

• virus
• plasmid
• gene bullet
• PCR

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.

Which of the following are found in both DNA and RNA?

• phosphate groups, guanine, and thymine
• ribose, phosphate groups, and adenine c. phosphate groups, guanine, and cytosine
• deoxyribose, phosphate groups, and guanine
• ribose, phosphate groups, and adenine

Which is the primary purpose of using restriction enzymes in gel elctrophoresis?

• It allows the strands of DNA to be cut into various lengths for testing
• It restricts the number of base pairs that can be tested in a sample
• It makes the testing simpler by moving the strands into the gel faster
• It charges the DNA strands

During translation, the type of amino acid that is added to the growing polypeptide depends on the

• anticodon on the mRNA only
• codon on the mRNA only.
• codon on the mRNA and the anticodon on the tRNA to which the amino acid is attached.
• anticodon on the tRNA to which the amino acid is attached only.