Gene Expression and Evolution

Which ribosome part contains a tRNA after it has dropped off its amino acid & is about to exit?

• A site
• P site
• E site
• B site

The existance of which process disproves the "one gene, one protein" theory?

• transcription
• translation
• RNA processing 
• RNA splicing (editing)

How many nucleotides code for each amino acid?

• 1
• 2
• 3
• 64

Which represents the correct order of "the central dogma of molecular biology"?

• protein to DNA to mRNA to trait
• DNA to mRNA to protein to trait
• DNA to protein to mRNA to trait
• trait to DNA to protein to mRNA

What helps RNA polymerase attach to a gene in transcription?  Also, name the gene section.

• transcription factors, elongator
• transcription factors, promoter
• enzymes, terminator
• enzymes, promotoer

Area of the ribosome that holds the tRNA that is carrying the growing polypeptide chain?

• A
• P
• E
• X

The end of the growing RNA strand in transcription to which RNA polymerase can add nucleotides?

• 3'
• 5'
• 1'
• 2'

Which of the following represent the order that a codon goes through the ribosome sites?

• A->P->E
• P->A->E
• E->A->P
• A->E->P

Transcribe this DNA sequence to mRNA: AAACCGGCC

• UUUGGCCGC
• TTTGGCGGG
• TTTGGCCGG
• UUUGGCCGG

What is an exon?

• section of mRNA that codes for protein
• section of mRNA that does not code for protein
• section of tRNA that codes for protein
• section of rRNA that codes for protein