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TLS Online TPP Program

#Question id: 4449

Promoters recognized by polymerase containing s70 share the following characteristic structure;

#Unit 3. Fundamental Processes

  1. Two conserved sequences, each have 4 nucleotides

  2. The two defined sequences are centered, respectively, at ~10 bp and at ~35 bp downstream of the site where RNA synthesis starts.

  3. In general the consensus sequence separated by the 17 bp

  4. Promoters with sequences far to the consensus are generally stronger.

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TLS Online TPP Program

#Question id: 28982

#Unit 7. System Physiology – Animal

Tyrosine is transported into catecholamine-secreting neurons via
TLS Online TPP Program

#Question id: 28983

#Unit 7. System Physiology – Animal

Which of the following is the rate limiting step in synthesis of catecholamines?
TLS Online TPP Program

#Question id: 28984

#Unit 7. System Physiology – Animal

DOPA decarboxylase synthesized dopamine, which is transported into the vesicle for further synthesis by____
TLS Online TPP Program

#Question id: 28985

#Unit 7. System Physiology – Animal

Norepinephrine is formed by which of the following process?
I- hydroxylation followed by decarboxylation of tyrosine
II- by conversion of dopamine in presence of dopamine β -hydroxylase enzyme
TLS Online TPP Program

#Question id: 28986

#Unit 7. System Physiology – Animal

Epinephrine is formed by which of the following process ?
TLS Online TPP Program

#Question id: 28987

#Unit 7. System Physiology – Animal

glucocorticoid secretion is reduced during fetal life and the adrenal medulla is dysplastic due to the deficiency of enzyme, such enzyme is known as____