The Expression of Genetic Information BSCS Ch 11

What is the basic unit of heredity?

• Nucleotide

• Chromosome

• Gene

• Protein

How many copies of each gene do humans have?

• Four

• Two

• One

• Three

What is the process of producing RNA from a DNA template called?

• Transcription

• Replication

• Translation

• Mutation

Which sugar is found in RNA?

• Fructose

• Deoxyribose

• Ribose

• Glucose

What is the role of messenger RNA (mRNA)?

• To carry information from DNA to the cytoplasm

• To form the structure of ribosomes

• To transfer amino acids to ribosomes

• To replicate DNA

Which base is found in RNA but not in DNA?

• Uracil

• Thymine

• Cytosine

• Adenine

What is the function of enzymes in the stomach?

• To break down food

• To replicate DNA

• To produce pigments

• To carry oxygen

What is the first step in gene expression?

• DNA replication

• Translation

• Protein folding

• Transcription

What is the role of transfer RNA (tRNA)?

• To replicate DNA

• To transfer amino acids to ribosomes

• To form ribosomes

• To carry genetic information

What is the main structural difference between DNA and RNA?

• RNA is double-stranded

• RNA contains ribose sugar

• DNA is single-stranded

• DNA contains uracil