APUS CLE : BIOL133 :Exam 2 Chapter 12-15.pdf - APUS CLE :...

4/18/20, 9 : 37 PM APUS CLE : BIOL133 K006 Fall 19 : Tests & Quizzes
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Exam 3- Chapters 12-15 Exam 3- Chapters 12-15
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Question 1 of 40
A mutation causes a codon to change from UAC to UAU, both of which specify tyrosine. This is an
example of
A. a frameshift mutation
BIOL133 K006 Fall 19
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The organism lives and replicates despite protease and DNase treatment, but the organism dies when treated
with RNase.
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B. missense mutation
C. silent mutation
D. nonsense mutation
Feedback: Feedback: Learning Objective: Discuss the different types of mutations in DNA
Question 2 of 40
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?

4/18/20, 9 : 37 PM APUS CLE : BIOL133 K006 Fall 19 : Tests & Quizzes
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C.
The organism lives and replicates despite protease treatment, but the organism dies when treated with DNase
and RNase.
D.
The organism lives and replicates despite DNase treatment, but the organism dies when treated with RNase
and protease.
Feedback: Feedback: Learning Objective: Analyze the process of DNA replication
Question 3 of 40
The most common time individual assortment occurs is when genes are ________?
Page 2 of 16
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Feedback: Feedback: Correct
Question 5 of 40
If a family has a child with Down syndrome (trisomy-21), then one of the siblings must be
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Feedback: Feedback: Correct
Question 4 of 40
What type of enzyme cuts the pre-mRNA between the AAUAAA consensus sequence and a GU-rich
sequence?

4/18/20, 9 : 37 PM APUS CLE : BIOL133 K006 Fall 19 : Tests & Quizzes
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