UTEO BIO 1305 Chapter 10 Exam

What does one gene typically encode?

• One polypeptide

• Multiple polypeptides

• One carbohydrate

• One lipid

What is the first step in gene expression?

• Translation of RNA into amino acids

• Replication of DNA

• Transcription of DNA into RNA

• Modification of proteins

Where are the rules for translating RNA into amino acids found?

• In the ribosomes

• In the genetic code

• In the DNA helix

• In the cell membrane

Which molecule is translated into amino acids by ribosomes?

• DNA

• RNA

• Proteins

• Lipids

How are proteins sometimes altered?

• Before translation

• During DNA replication

• After translation

• During transcription

What is transcription?

• Conversion of RNA to DNA

• Conversion of proteins to amino acids

• Conversion of DNA to RNA

• Conversion of amino acids to proteins

Which of the following is NOT a component of RNA?

• Adenine

• Thymine

• Uracil

• Cytosine

What is the role of mRNA in protein synthesis?

• It carries amino acids to ribosomes

• It forms the structure of ribosomes

• It carries genetic information from DNA to ribosomes

• It catalyzes peptide bond formation

Which type of RNA forms the main structure of ribosomes?

• mRNA

• tRNA

• rRNA

• snRNA

The sequence of __________ in DNA determines the sequence of amino acids in proteins.

• Lipids

• Sugars

• Nucleotides

• Fatty acids