Test
CHAPTER 10Review 223
Critical Thinking
- Applying InformationHow does gene
regulation of the lacoperon promote home-
ostasis in intestinal E. coli bacteria? - Evaluating ResultsA molecular biologist
isolates mRNA from the brain and from
the liver of a mouse and finds that the
mRNA molecules are different from each
other. Can these results be correct or has
the biologist made an error? Explain your
answer. - Evaluating an ArgumentA classmate
states that damage to exons is very likely
to affect the synthesis of a protein, while
damage to introns is not. Evaluate that
statement. - Evaluating SignificanceCompare and
contrast chromosomal mutations with
point mutations, and evaluate the signifi-
cance of each.
Alternative Assessment
- Finding InformationUse the media center
or Internet resources to learn about antibi-
otics that interfere with protein synthesis.
How do antibiotics fight bacterial infec-
tion? Prepare an oral report that includes
graphics to interpret and summarize your
findings. - Career ConnectionProtein Chemist
Research the field of protein chemistry, and
write a report on your findings. Your report
should include a job description, training
required, kinds of employers, growth
prospects, and a starting salary. - Interactive Tutor Unit 6Gene Expression
Write a report summarizing how antibi-
otics inhibit protein synthesis in bacteria.
How do some antibiotics interfere with
translation?
TAKS Test PrepTAKS Test Prep
Use the model below and your knowledge of
science to answer questions 1–3.
1.Which cellular function does this model
represent?
A Transcription
B Translation
CTransformation
DDNA replication
2.Which part of the model represents a
codon?
F A
GB
HC
J D
3.What does the part labeled Erepresent?
A Ribosome
B Growing protein chain
CMessenger RNA
DTransfer RNATest questions are not necessarily arranged in order
of increasing difficulty. If you are unable to answer a
question, mark it and move on to other questions.EA
CBD3D6B6B6B6B9A6C4B2D 4B 6B
6C