BIOL 133 CHAPTER 14 | COMPREHENSIVE BIOLOGY STUDY GUIDE,
PRACTICE QUESTIONS & ANSWERS 2026/2027
Some scientists have proposed that the earliest forms of life may have existed in an "RNA World" where
RNA was both the genetic material and responsible for enzymatic activity. Imagine that you have
recreated such a life form. What would demonstrate that RNA, but not protein or DNA, is necessary and
sufficient for these functions? - correct answer ✔✔The organism lives and replicates despite protease
and DNase treatment, but the organism dies when treated with RNase.
Frameshift mutations occur when - correct answer ✔✔bases are added or deleted
What is the correct order of DNA compaction in eukaryotes? - correct answer ✔✔Helix, nucleosome,
chromatin fiber, condensation of chromatin, duplicated chromosome
A mutation causes a codon to change from UAC to UAU, both of which specify tyrosine. This is an
example of - correct answer ✔✔silent mutation
If a DNA sample from an unknown organism has telomerase, the organism - correct answer ✔✔Is
eukaryotic
________ creates fragments on the lagging strand. - correct answer ✔✔DNA polymerase III
Chargaff's rule is supported by what statement? - correct answer ✔✔A + G = T + C
PRACTICE QUESTIONS & ANSWERS 2026/2027
Some scientists have proposed that the earliest forms of life may have existed in an "RNA World" where
RNA was both the genetic material and responsible for enzymatic activity. Imagine that you have
recreated such a life form. What would demonstrate that RNA, but not protein or DNA, is necessary and
sufficient for these functions? - correct answer ✔✔The organism lives and replicates despite protease
and DNase treatment, but the organism dies when treated with RNase.
Frameshift mutations occur when - correct answer ✔✔bases are added or deleted
What is the correct order of DNA compaction in eukaryotes? - correct answer ✔✔Helix, nucleosome,
chromatin fiber, condensation of chromatin, duplicated chromosome
A mutation causes a codon to change from UAC to UAU, both of which specify tyrosine. This is an
example of - correct answer ✔✔silent mutation
If a DNA sample from an unknown organism has telomerase, the organism - correct answer ✔✔Is
eukaryotic
________ creates fragments on the lagging strand. - correct answer ✔✔DNA polymerase III
Chargaff's rule is supported by what statement? - correct answer ✔✔A + G = T + C
