Intro to Biology Exam 4 - Questions

Intro to Biology Exam #4 - Questions with Complete Solutions (Latest 2025) How does HIV violate the Central Dogma of Molecular Biology?

• RNA translated into protein
• Protein translated into RNA
• RNA is transcribed into DNA
• DNA transcribed into RNA - Correct Answers ✅C. RNA is

transcribed into DNA What amino acid sequence will be generated based on the following mRNA codon sequence? 5' AUG-AGU-UUA-UGC-UUC-

UCC 3'

• met-ser-leu-ser-phe-ser
• met-arg-glu-arg-glu-arg
• met-leu-phe-arg-glu-glu
• met-ser-leu-cys-phe-ser - Correct Answers ✅D. met-ser-

leu-cys-phe-ser Which DNA Polymerase has proofreading activity in the 3' to 5' direction?

• DNA Polymerase III
• DNA Polymerase II
• DNA Polymerase I
• Both A and C - Correct Answers ✅A. DNA Polymerase III 1 / 2

Intro to Biology Exam #4 - Questions with Complete Solutions (Latest 2025) When nonvirulent bacteria were mixed with dead virulent bacteria, Griffith unexpectedly found that the injected mice died. He explained this behavior by suggesting the nonvirulent strain of bacteria as being

• transformed.
• activated.
• translated.
• transcribed. - Correct Answers ✅A. transformed.

What is the role of the single-stranded binding proteins?

• Unwind the double helix of DNA
• Relieves strain within the DNA
• Stabilizes the strands of DNA.
• Synthesize strands of DNA - Correct Answers ✅C.

Stabilizes the strands of DNA.If the original strand of DNA sequence is 3'-ATGCTCA- 5', what is the complementary sequence that would be transcribed by RNA Polymerase?

A. 5'-TACGAGT-3'

B. 3'-TACGAGT-5'

C. 5'-UACGAGU-3'

• 3'-UACGAGU-5' - Correct Answers ✅C. 5'-UACGAGU-3'
• / 2