BSCI170 Exam 3 + Final Material

What is the correct sequence of the Central Dogma?

• A) DNA → RNA → Protein

• B) RNA → DNA → Protein

• C) Protein → RNA → DNA

• D) DNA → Protein → RNA

Tags

NGSS.HS-LS1-1

During DNA replication, the enzyme that synthesizes the new strand is:

• RNA polymerase

• DNA ligase

• DNA polymerase

• Helicase

Which model of DNA replication produces one daughter molecule with both original strands and one with two new strands?

• Semiconservative

• Conservative

• Dispersive

• None of the above

The transcription product of the DNA sequence 5'-ATG-3' is:

• 3'-TAC-5'

• 5'-UAC-3'

• 3'-AUG-5'

• 5'-TAC-3'

RNA splicing removes ______ and joins ______.

• A) Exons; Introns

• B) Introns; Exons

• C) 5' cap; Poly-A tail

• D) Codons; Anticodons

During translation, a peptide bond forms when:

• A tRNA exits the E site

• A charged tRNA binds to the A site

• The ribosome reaches a stop codon

The small ribosomal subunit binds mRNA

• The small ribosomal subunit binds mRNA

• A charged tRNA binds to the A site

• The large ribosomal subunit binds mRNA

• The ribosome dissociates

The codon AUG codes for:

• Stop

• Methionine (start)

• Leucine

• Glycine

A mutation that changes a codon to a stop codon is called:

• Missense

• Nonsense

• Silent

• Frameshift

Tags

NGSS.HS-LS3-2

DNA repair mechanisms are active:

• Only during S phase

• Only during mitosis

• Throughout the cell cycle

• Only in prokaryotes