LS 7C - PCRQ Week 1 Wednesday EXAM
QUESTION AND VERIFIED CORRECT
ANSWERS GRADED A+ [LATEST
UPDATE] 100% GUARANTEED PASS
In the figure shown, there are four ligands (M, H, K, and L) and their corresponding receptors
along with four genes (S, T, U, and V), whose activity the receptor controls through signal
transduction. The arrows indicate gene activation, the T-bars indicate gene repression.
Which ligand acts as a signal resulting in gene U being inactive and gene V being active? -
CORRECT ANSWER-ligand K
Signal transduction is the process by which: - CORRECT ANSWER-an extracellular molecule
activates a membrane protein, which in turn activates molecules inside the cell.
In the figure shown, there are four ligands (M, H, K, and L) and their corresponding receptors
along with four genes (S, T, U, and V), whose activity the receptor controls through signal
transduction. The arrows indicate gene activation, the T-bars indicate gene repression.
Which ligand acts as a signal resulting in gene U being active and V inactive? - CORRECT
ANSWER-ligand H
When the signal is present ______ (mark all that apply). - CORRECT ANSWER-P4 is inactive
, P1 is active
TF2 is in the nucleus
After the SR receptor binds its signal molecule, the DET genes are expressed.
For the following statement, answer True or False:
Expression of receptors and transducers of differentiation will cause stem cells to differentiate. -
CORRECT ANSWER-false
A cell in a chick embryo is tested to determine whether it is a stem cell of some kind. The results
of these tests find:
1.The SR receptor is present2.DIV genes are on3.The DIFF (skin) genes are blocked4.TF of the
neural pathway is in the cytoplasm5.Transducer 2 of the skin pathway is not phosphorylated
Based on these results, answer True or False for the following statement.
The transcription factor of the Skin pathway is in the cytoplasm. - CORRECT ANSWER-true
When the signal is not present ______ (mark all that apply). - CORRECT ANSWER-P2 is inactive
P3 is active
Use the diagram to determine which genes are expressed in a quiescent stem cell. - CORRECT
ANSWER-SR genes
This tissue type is made up of cells that can contract. - CORRECT ANSWER-muscle tissue
You are examining a group of cells that are growing in culture under a microscope in the lab.In
order for you to classify these cells as part of the same tissue, what would you expect to
observe? Select all that apply. - CORRECT ANSWER-The cells perform similar functions.
QUESTION AND VERIFIED CORRECT
ANSWERS GRADED A+ [LATEST
UPDATE] 100% GUARANTEED PASS
In the figure shown, there are four ligands (M, H, K, and L) and their corresponding receptors
along with four genes (S, T, U, and V), whose activity the receptor controls through signal
transduction. The arrows indicate gene activation, the T-bars indicate gene repression.
Which ligand acts as a signal resulting in gene U being inactive and gene V being active? -
CORRECT ANSWER-ligand K
Signal transduction is the process by which: - CORRECT ANSWER-an extracellular molecule
activates a membrane protein, which in turn activates molecules inside the cell.
In the figure shown, there are four ligands (M, H, K, and L) and their corresponding receptors
along with four genes (S, T, U, and V), whose activity the receptor controls through signal
transduction. The arrows indicate gene activation, the T-bars indicate gene repression.
Which ligand acts as a signal resulting in gene U being active and V inactive? - CORRECT
ANSWER-ligand H
When the signal is present ______ (mark all that apply). - CORRECT ANSWER-P4 is inactive
, P1 is active
TF2 is in the nucleus
After the SR receptor binds its signal molecule, the DET genes are expressed.
For the following statement, answer True or False:
Expression of receptors and transducers of differentiation will cause stem cells to differentiate. -
CORRECT ANSWER-false
A cell in a chick embryo is tested to determine whether it is a stem cell of some kind. The results
of these tests find:
1.The SR receptor is present2.DIV genes are on3.The DIFF (skin) genes are blocked4.TF of the
neural pathway is in the cytoplasm5.Transducer 2 of the skin pathway is not phosphorylated
Based on these results, answer True or False for the following statement.
The transcription factor of the Skin pathway is in the cytoplasm. - CORRECT ANSWER-true
When the signal is not present ______ (mark all that apply). - CORRECT ANSWER-P2 is inactive
P3 is active
Use the diagram to determine which genes are expressed in a quiescent stem cell. - CORRECT
ANSWER-SR genes
This tissue type is made up of cells that can contract. - CORRECT ANSWER-muscle tissue
You are examining a group of cells that are growing in culture under a microscope in the lab.In
order for you to classify these cells as part of the same tissue, what would you expect to
observe? Select all that apply. - CORRECT ANSWER-The cells perform similar functions.
