Nucleic Acids - Mock Test 7

Question 61

Translocase is an enzyme required in the process of?

A) DNA replication B) RNA synthesis C) Initiation of protein synthesis D) Elongation of peptides

---

No Details

Question 62

The formation of a peptide bond during the elongation step of protein synthesis results in the splitting of how many high energy bonds?

A) 1 B) 2 C) 3 D) 4

---

No Details

Question 63

Polysemes do not contain?

A) Protein B) DNA C) mRNA D) rRNA

---

No Details

Question 64

Which pathway is correct for catabolism of purines to form uric acid?

A) Guanylate→Adenylate→Xanthine→hypoxanthine→Uric acid B) Guanylate→inosinate→Xanthine→hypoxanthine→Uric acid C) Adenylate→Inosinate→Xanthine hypoxanthine→Uric acid D) Adenylate→Inosinate→hypoxanthine Xanthine→Uric acid

---

No Details

Question 65

Two nitrogen of the pyrimidines ring are obtained from All are true about lesch-nyhan syndrome except?

A) Produces self-mutilation B) Genetic deficiency of the enzyme C) Elevated levels of uric acid in blood D) Inheritance is autosomal recessive

---

No Details

Question 66

In humans, the principal metabolic product of pyrimidines is?

A) Uric acid B) Allantoin C) Hypoxanthine D) β-alanine

---

No Details

Question 67

In humans, the principal break down product of purines is?

A) NH3 B) Allantin C) Alanine D) Uric acid

---

No Details

Question 68

The probable metabolic defect in gents is?

A) A defect in excretion of uric acid by kidney B) An overproduction of pyrimidines C) An overproduction of uric acid D) Rise in calcium leading to deposition of calcium urate

---

No Details

Question 69

Insoinic acid is the biological precursor of?

A) Cytosine and Uric acid B) Adenylve acid and Glucine floc acid C) Orotic acid and Uridylic acid D) Adenosine acid Thymidine

---

No Details

Question 70

A drug which prevents uric acid synthesis by inhibiting the enzyme Xanthine oxidase is?

A) Aspirin B) Allopurinal C) Colchicine D) Phenyl benzoate

---

No Details