Biology1002B - Biology for Sciences II (BIOLOGY1002B)
All documents for this subject (1)
Seller
Follow
kthai23
Content preview
B1002B - Practice Questions for February Test 2021
1. A useful bioinformatics tool is one that can determine the number of open-reading frames
(ORFs) in a genome.
Why is knowing the number of ORFs useful?
A. It gives an estimate of the number of promoter sequences in a genome.
B. It gives an estimate of the number of genes in a genome.
C. It gives an estimate of the number of proteins coded by a genome.
D. It gives an estimate of the number of bases in a genome.
2. Cilia are important features of many human cells and are classified as either motile or non-
motile cilia.
Which of the following statements accurately describes ciliated cells?
1. Like cells with flagella, ciliated cells lack mitochondria.
2. Most cilia-based human diseases are caused by defects in non-motile cilia.
3. Like humans, Chlamydomonas has both motile and non-motile flagella.
4. Cells with non-motile cilia usually have sensory membrane proteins.
A. 1, 2 and 3
B. 1 and 3
C. 2 and 4
D. 4 only
E. All of 1, 2, 3 and 4 are correct
3. Recall from Class 1 that we discussed the analysis of 7,476 Chlamydomonas proteins and
compared them to proteins in humans and Arabidopsis.
What is an example of a protein that is found in all three species: Chlamydomonas,
humans and Arabidopsis?
A. Opsin, a seven transmembrane domain protein that binds retinal.
B. Toc1, a protein of the outer mitochondrial membrane.
C. Hexolyase4, an enzyme involved in chlorophyll biosynthesis.
D. Dynein, a cytoskeletal protein involved in cilia and flagella assembly.
4. In the field of optogenetics, Chlamydomonas opsin is expressed in mouse neurons.
Why can’t optogenetic experiments just use mouse opsin?
A. Because mouse opsin doesn’t bind retinal.
B. Because mouse opsin doesn’t trigger an action potential.
C. Because mouse opsin is not sensitive to
light.
D. Because mouse opsin is not an ion channel.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller kthai23. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.
