Often the growth cycle of one population  has an  effect on  the cycle  of  another. As  moose populations  increase, wolf populations also increase. Thus, if we are considering the  logistic equation for the wolf population,

hich of the factors accounts for the effect on the moose population?

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#Question id: 28981

#Unit 7. System Physiology – Animal

Phenylketonuria (PKU) is caused by___

I-Mutation of the gene for phenylalanine hydroxylase

II-tetrahydrobiopterin (BH4) deficiency

III-mutation in dihydroxyphenylalanine 

IV-due to the substitution mutation in tetrahydrobiopterin

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#Question id: 28982

#Unit 7. System Physiology – Animal

Tyrosine is transported into catecholamine-secreting neurons via

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#Question id: 28983

#Unit 7. System Physiology – Animal

Which of the following is the rate limiting step in synthesis of catecholamines?

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#Question id: 28984

#Unit 7. System Physiology – Animal

DOPA decarboxylase synthesized dopamine, which is transported into the vesicle for further synthesis by____

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#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

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#Question id: 28986

#Unit 7. System Physiology – Animal

Epinephrine is formed by which of the following process ?