Cellular Communication, Cytoskeleton And Bioinformatics Flashcards
1
Q
When steroid hormone receptors bind
their ligand which part of the protein is
responsible for localization of the
complex to the correct part of the cell?
A
The nuclear localization sequence
2
Q
Which of the following is NOT generally classed as a second messenger? -ATP -Ca2+ -Inositol triphosphate (IP3) -cAMP -Nitric oxide
A
ATP
3
Q
Given a sequence of DNA, the
bioinformatics software Translate can
translate the sequence into how many
possible reading frames?
A
6
4
Q
Which of the following amino acids is NOT a likely component of a transmembrane helix? -Leucine -Glutamic acid -Isoleucine -Valine -Alanine
A
Glutamic acid
5
Q
A researcher is conducting a microarray experiment examining the difference in gene expression between plants grown at 10°C and plants grown at 30°C. RNA is collected and during the cDNA synthesis the researcher labels 10°C plant cDNA with a red dye and 30°C cDNA with a green dye. What happens?
A
Spots lighting up red may relate to up-regulation of genes at 10°C
6
Q
What database could we use to
observe the 3-dimensional structure of
a protein?
A
Protein Databank
7
Q
What are the three major
components of the eukaryotic
cytoskeleton?
A
Microfilaments, Microtubules, Intermediate filaments
8
Q
Which of the following monomers is part of a microfilament? -Alpha tubulin -Beta tubulin -Protein helixes -Actin -Myosin
A
Actin
9
Q
Which aspect of the cytoskeleton is
missing in Prokaryotes?
A
Molecular motors
