Bio Core II Exam 1 | Actual Exam
Questions | 100% Correct Answers |
Verified 2024 Version
which of the following statements regarding a DNA double helix is always true? - ✔✔the amount of
adenine is equal to the amount of thymine, and the amount of guanine is equal to the amount of
cytosine
working in a coroner's office, you are investigating the mysterious death of a person found in the
wooded area in the spring of the year. during a cellular analysis of this body, you learn that the levels of
mRNA that can be obtained from critical tissues are very low, and you find mushrooms in the contents of
the stomach. after examination of the mushrooms, you learn that they are a species of Aminita, and a
search of the Internet reveals that a toxin in this fungus inhibits RNA polymerase. However this isn't very
specific information. to be more certain of the cause of death in this case, you would need to verify that
the alpha-aminitin inhibits which eukaryotic RNA polymerase? - ✔✔RNA polymerase II
a prokaryotic mRNA transcript is - ✔✔translated as it is being transcribed
in eukaryotes, transcription is initiated by the formation of a pre initiation complex of transcription
factors and RNA polymerase at the TATA box of the promoter. give the correct order of the steps below: -
✔✔A: the TFIID complex containing the TATA box binding proteins binds to the TATA box
B: TFIIA and TFIIB bind to the initiation complex
E: TFIIF binds to RNA polymerase and this complex adds to the complex assembling at the TATA box
D: TFIIE and TFIIH bind to the complex, and the helicase function of TRIIH produces a small bubble in the
double-stranded DNA
C: RNA polymerase begins transcribing the sense strand of the DNA producing a complementary RNA
which form of DNA is a left-handed double helix - ✔✔Z-DNA
which of the following catalyzes the synthesis of ribosomal RNA in eukaryotes - ✔✔both RNA
polymerase I and III
