A. Phenylalanine
B. Tryptophan
C. Tyrosine
D. Methionine
Related Mcqs:
- The precursor of cholesterol synthesis is________________?
A. Acetic acid
B. Acetyl CoA
C. Oxalo acetic acid
D. Pyruvate - Melanin pigmentation in pregnancy is known as______________?
A. Melasma
B. Melanoma
C. Epulis
D. Melanosis - Disease which increase oral melanin pigmentation_______________?
A. addison’s disease
B. Hyperthyroidsim
C. Nephritis
D. All of the above - Which of the following is a precursor of protoporphyrin_______________?
A. Alanine
B. Leucine
C. Histidine
D. Glycine - The precursor of steroid is_______________?
A. Amino acids
B. Fatty acids
C. Cholesterol
D. None of the above - The precursor of testosterone is_____________?
A. Aldosterone
B. Methyl testosterone
C. Estrogen
D. Pregnenolone - The immediate precursor of norepinephrine is______________?
A. Epinephrine
B. Tyrosine
C. Dopamine
D. Phenylalanine - Which of the following is precursor of adrenaline and thyroxine synthesis ?
A. Phenyl alanine
B. Tyrosine
C. Tryptophan
D. None of the above - Which of the following cell type is not a precursor of erythrocyte____________?
A. PR erythroblast
B. Norm oblast
C. Reticulocyte
D. Myeloblast - Which one of the following is a precursor of both gonadal and adrenocortical hormones_____________?
A. Progesterone
B. Cortisol
C. Testosterone
D. Corticosterone
