CH 5 PRACTICE TEST

What are the three major types of RNA?

• mRNA, rRNA, jRNA

• rRNA, tRNA, fRNA

• DNA, pRNA, tRNA

• mRNA, tRNA, rRNA

What is the function of a 5' cap added to mature mRNA?

• Stops transcription

• Initiates translation

• Promotes splicing

• Prevents destruction by exonucleases

Which amino acid is known as the start codon?

• Proline

• Leucine

• Methionine

• Glycine

What is the role of tRNA in protein synthesis?

• Transcription of DNA

• Translation of mRNA

• Bringing amino acids to ribosomes

• Splicing of introns

What triggers the disassembly of mRNA and the end of translation?

• Start codon

• Amino acid chain

• Release factor

• Stop codon

What is the purpose of the Human Genome Project?

• All of the above

• To improve diagnoses, treatments, and cures for genetic diseases

• To map the location of every gene on each chromosome

• To determine the nucleotide sequence of the entire human genome

What is the function of insulin in the human body?

• To aid in digestion

• To produce red blood cells

• To regulate the amount of glucose in the blood

• To control body temperature

What is the role of restriction enzymes in genetic engineering?

• To cut DNA at specific sequences

• To produce insulin

• To regulate gene expression

• To repair damaged DNA

What is the function of CRISPR in gene editing?

• To produce antibodies

• To cut DNA at any specific sequence

• To regulate blood sugar levels

• To repair muscle tissue

How does CRISPR technology benefit individuals with genetic disorders like sickle cell anemia?

• By altering the DNA sequence to correct mutations

• By increasing blood pressure

• By reducing cholesterol levels

• By improving lung function