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TLS Online TPP Program
#Question id: 34167
#Unit 7. System Physiology – Animal
I. The adrenal medulla does not regenerate, but when the inner two zones of the cortex are removed, a new ZF and ZR regenerate from glomerular cells attached to the capsule.
II. Immediately after hypophysectomy, the ZF and ZR begin to atrophy, whereas the ZG is unchanged because of the action of angiotensin II on this zone.
III. The ability to secrete aldosterone and conserve Na+ is normal for some time after hypophysectomy, but in longstanding hypopituitarism, aldosterone deficiency may develop, apparently because of the absence of a pituitary factor that maintains the responsiveness of the zona glomerulosa.
TLS Online TPP Program
#Question id: 34168
#Unit 7. System Physiology – Animal
Angiotensin II stimulates aldosterone production in the zona glomerulosa by binding to AT1 receptors. Which of the following best describes the intracellular signaling pathway and its role in aldosterone biosynthesis?
TLS Online TPP Program
#Question id: 34169
#Unit 7. System Physiology – Animal
Based on the provided graph panels (A–D), which of the following statements is INCORRECT?
TLS Online TPP Program
#Question id: 34170
#Unit 3. Fundamental Processes
What is correct about Klenow fragment
A. is a single polypeptide of 103 kD
B. larger cleavage product of DNA Pol I of 68 kD
C. It contains the polymerase activity
D. It contains the 3’-5’ exonuclease activity
E. It contains the 5’-3’ exonuclease activity
TLS Online TPP Program
#Question id: 34171
#Unit 3. Fundamental Processes
If the rate of fidelity of replication in bacteria is 10-9/bp. How many replications it would take to make a mistake?
TLS Online TPP Program
#Question id: 34172
#Unit 3. Fundamental Processes
Frameshifts occur when an extra nucleotide is inserted or omitted. Which of sequence and property is most sensitive combination for the frameshift to occur