Bio 203 Quiz 5 Questions And Answers Latest Update 2026

INSTANT
PASS! 2026/2027




Bio 203 Quiz 5 Questions And Answers
Latest Update 2026


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Point mutation are referred to as missence, silent, frameshift, or
nonsense when they change the proetin-coding potential of a gene.
What is another group of mutations that may have important
consequences for gene expression?

a. combinations of missense and silent mutations

b. mutations that alter the amino acid sequence of a gene

c. mutations that shift the reading frame of a gene

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d. mutations that exist outside coding sequences in regulatory regions -
Answer d. mutations that exists outside coding sequences in
regulatory regions



why might a point mutation in DNA make a difference in the level of a
protein's activity?

a. it might exchange one stop codon for another stop codon

b. it might delay the rate of DNA replication

c. it might substitute different amino acid in the active site

d. it might substitute the N-terminus of the polypeptide for the C-
terminus - Answer c. it might substitute a different amino acid in
the active site



Givern the double-stranded DNA shown below, RNA is synthesized in
the ____ direction by RNA polymerase using ___.

a. A. 3' → 5', the nontemplate DNA strand

B. 5' → 3', the nontemplate DNA strand

C. 3' → 5', the template DNA strand

D. 5' → 3', the template DNA strand - Answer D. 5' -> 3', the
template DNA strand