Thiamine is (A) Water-soluble vitamin (B) Fat soluble vitamin (C) Purine base (D) Pyrimidine base

Thiamine is (A) Water-soluble vitamin (B) Fat soluble vitamin (C) Purine base (D) Pyrimidine base
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Answer : D
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Thymine is (A) Water soluble vitamin (B) Fat soluble vitamin (C) Purine base (D) Pyrimidine base

Description : Thymine is (A) Water soluble vitamin (B) Fat soluble vitamin (C) Purine base (D) Pyrimidine base

Last Answer : Answer : D

Assertion: Uric acid is produced by the metabolism of purine and pyrimidine. Reason: Uric acid has high toxicity and is soluble in water.

Description : Assertion: Uric acid is produced by the metabolism of purine and pyrimidine. Reason: Uric acid has high toxicity and is soluble in water.

Last Answer : Assertion: Uric acid is produced by the metabolism of purine and pyrimidine. Reason: Uric acid has ... D. If both Assertion and Reason are false

Vitamin B12 has a complex ring structure (corrin ring) consisting of four (A) Purine rings (B) Pyrimidine rings (C) Pyrrole rings (D) Pteridine rings

Description : Vitamin B12 has a complex ring structure (corrin ring) consisting of four (A) Purine rings (B) Pyrimidine rings (C) Pyrrole rings (D) Pteridine rings

Last Answer : Answer : C

Intestinal nucleosidases act on nucleosides and produce (A) Purine base only (B) Phosphate only (C) Sugar only (D) Purine or pyrimidine bases and sugars

Description : Intestinal nucleosidases act on nucleosides and produce (A) Purine base only (B) Phosphate only (C) Sugar only (D) Purine or pyrimidine bases and sugars

Last Answer : Answer : D

A nucleotide consists of (A) A nitrogenous base like choline (B) Purine + pyrimidine base + sugar + phosphorous (C) Purine or pyrimidine base + sugar (D) Purine or pyrimidine base + phosphorous

Description : A nucleotide consists of (A) A nitrogenous base like choline (B) Purine + pyrimidine base + sugar + phosphorous (C) Purine or pyrimidine base + sugar (D) Purine or pyrimidine base + phosphorous

Last Answer : Answer : B

A nucleoside consists of (A) Nitrogenous base (B) Purine or pyrimidine base + sugar (C) Purine or pyrimidine base + phosphorous (D) Purine + pyrimidine base + sugar + phosphorous

Description : A nucleoside consists of (A) Nitrogenous base (B) Purine or pyrimidine base + sugar (C) Purine or pyrimidine base + phosphorous (D) Purine + pyrimidine base + sugar + phosphorous

Last Answer : Answer : B

A nucleotide is formed of (a) purine, pyrimidine and phosphate (b) purine, sugar and phosphate (c) nitrogen base, sugar and phosphate (d) pyrimidine, sugar and phosphate

Description : A nucleotide is formed of (a) purine, pyrimidine and phosphate (b) purine, sugar and phosphate (c) nitrogen base, sugar and phosphate (d) pyrimidine, sugar and phosphate

Last Answer : (c) nitrogen base, sugar and phosphate

Which one of the following contributes nitrogen atoms to both purine and pyrimidine rings? (A) Aspartate (B) Carbanoyl phosphate (C) Carbondioxide (D) Tetrahydrofolate

Description : Which one of the following contributes nitrogen atoms to both purine and pyrimidine rings? (A) Aspartate (B) Carbanoyl phosphate (C) Carbondioxide (D) Tetrahydrofolate

Last Answer : Answer : A

Which one of the following causes frame shift mutation? (A) Transition (B) Transversion (C) Deletion (D) Substitution of purine to pyrimidine

Description : Which one of the following causes frame shift mutation? (A) Transition (B) Transversion (C) Deletion (D) Substitution of purine to pyrimidine

Last Answer : Answer : C

In DNA, genetic information is located in (A) Purine bases (B) Pyrimidine bases (C) Purine and pyrimidine bases (D) sugar

Description : In DNA, genetic information is located in (A) Purine bases (B) Pyrimidine bases (C) Purine and pyrimidine bases (D) sugar

Last Answer : Answer : C

The structural stability of the double helix of DNA is as cribbed largely to (A) Hydrogen bonding between adjacent purine bases (B) Hydrophobic bonding between staked purine and pyrinuidine nuclei (C) Hydrogen bonding between adjacent pyrimidine bases (E) Hydrogen bonding between purine and pyrimidine bases

Description : The structural stability of the double helix of DNA is as cribbed largely to (A) Hydrogen bonding between adjacent purine bases (B) Hydrophobic bonding between staked purine and ... Hydrogen bonding between adjacent pyrimidine bases (E) Hydrogen bonding between purine and pyrimidine bases

Last Answer : Answer : D

The available PRPP is used preferentially for (A) De novo synthesis of purine nucleotides (B) De novo synthesis of pyrimidine nucleotides (C) Salvage of purine bases (D) Salvage of pyrimidine bases

Description : The available PRPP is used preferentially for (A) De novo synthesis of purine nucleotides (B) De novo synthesis of pyrimidine nucleotides (C) Salvage of purine bases (D) Salvage of pyrimidine bases

Last Answer : Answer : C

5-Phosphoribosyl-1-pyrophosphate is required for the synthesis of (A) Purine nucleotides (B) Pyrimidine nucleotides (C) Both (A) and (B) (D) None of these

Description : 5-Phosphoribosyl-1-pyrophosphate is required for the synthesis of (A) Purine nucleotides (B) Pyrimidine nucleotides (C) Both (A) and (B) (D) None of these

Last Answer : Answer : C

Ultraviolet light can damage a DNA strand causing (A) Two adjacent purine residue to form a covalently bounded dimer (B) Two adjacent pyrimidine residues to form covalently bonded dimer (C) Disruption of phosphodiesterase linkage (D) Disruption of non-covalent linkage

Description : Ultraviolet light can damage a DNA strand causing (A) Two adjacent purine residue to form a covalently bounded dimer (B) Two adjacent pyrimidine residues to form covalently bonded dimer (C) Disruption of phosphodiesterase linkage (D) Disruption of non-covalent linkage

Last Answer : Answer : B

Genetic code is (A) Collection of codon (B) Collection of amino acids (C) Collection of purine nucleotide (D) Collection of pyrimidine nucleotide

Description : Genetic code is (A) Collection of codon (B) Collection of amino acids (C) Collection of purine nucleotide (D) Collection of pyrimidine nucleotide

Last Answer : Answer : A

Gout is a metabolic disorder of catabolism of (A) Pyrimidine (B) Purine (C) Alanine (D) Phenylalanine

Description : Gout is a metabolic disorder of catabolism of (A) Pyrimidine (B) Purine (C) Alanine (D) Phenylalanine

Last Answer : Answer : B

Pyrimidine and purine nucleoside biosynthesis share a common precursor: (A) PRPP (B) Glycine (C) Fumarate (D) Alanine

Description : Pyrimidine and purine nucleoside biosynthesis share a common precursor: (A) PRPP (B) Glycine (C) Fumarate (D) Alanine

Last Answer : Answer : A

In RNA molecule guanine content does not necessarily equal its cytosine content nor does its adenine content necessarily equal its uracil content since it is a (A) Single strand molecule (B) Double stranded molecule (C) Double stranded helical molecule (D) Polymer of purine and pyrimidine ribonucleotides

Description : In RNA molecule guanine content does not necessarily equal its cytosine content nor does its adenine content necessarily equal its uracil content since it is a (A) Single strand molecule ( ... stranded molecule (C) Double stranded helical molecule (D) Polymer of purine and pyrimidine ribonucleotides

Last Answer : Answer : A

Which one of the following causes frame shift mutation? (A) Transition (B) Transversion (C) Deletion (D) Substitution of purine to pyrimidine

Description : Which one of the following causes frame shift mutation? (A) Transition (B) Transversion (C) Deletion (D) Substitution of purine to pyrimidine

Last Answer : Answer : C

All mammalian steroid hormones are formed from (A) Purine (B) Pyrimidine (C) Cholesterol (D) Pyrrole

Description : All mammalian steroid hormones are formed from (A) Purine (B) Pyrimidine (C) Cholesterol (D) Pyrrole

Last Answer : Answer : C

Which of the following contributes nitrogen atoms to both purine and pyrimidine rings? (A) Aspartate (B) Carbamoyl phosphate (C) CO2 (D) Glutamine

Description : Which of the following contributes nitrogen atoms to both purine and pyrimidine rings? (A) Aspartate (B) Carbamoyl phosphate (C) CO2 (D) Glutamine

Last Answer : Answer : A

Fat soluble vitamins are – (1) Tocopherol, Niacin, Cyanocobalamin (2) Calciferol, Carotene, Tocopherol (3) Ascorbic acid, Calciferol, Riboflavin (4) Thiamine, Carotene, Biotin

Description : Fat soluble vitamins are – (1) Tocopherol, Niacin, Cyanocobalamin (2) Calciferol, Carotene, Tocopherol (3) Ascorbic acid, Calciferol, Riboflavin (4) Thiamine, Carotene, Biotin

Last Answer : (2) Calciferol, Carotene, Tocopherol Explanation: Calciferol (Vitamin D): Tocopherols and tocotrienols (Vitamin E); Phylloquinone, menaquinones (Vitamin K); and Retinol, retinal, and four carotenoids including beta carotene (Vitamin Al are all fat soluble vitamins.

Fat soluble vitamins are (1) Tocopherol, Niacin, Cyanocobalamin (2) Calciferol, Carotene, Tocopherol (3) Ascorbic acid, Calciferol, Riboflavin (4) Thiamine, Carotene, Biotin

Description : Fat soluble vitamins are (1) Tocopherol, Niacin, Cyanocobalamin (2) Calciferol, Carotene, Tocopherol (3) Ascorbic acid, Calciferol, Riboflavin (4) Thiamine, Carotene, Biotin

Last Answer : Calciferol, Carotene, Tocopherol

Difference between purine and pyrimidine. -Biology

Description : Difference between purine and pyrimidine. -Biology

Last Answer : answer:

True statements about the nucleic acid include: a. contains purine and pyrimidine which are bound together by covalent bonds b. there is always an equal concentration of purine and pyrimidine c. in RNA, thymine is replaced by uracil d. introns is more common than exons on the DNA e. the histones mark the excision site

Description : True statements about the nucleic acid include: a. contains purine and pyrimidine which are bound together by covalent bonds b. there is always an equal concentration of purine and pyrimidine c. in RNA, ... d. introns is more common than exons on the DNA e. the histones mark the excision site

Last Answer : there is always an equal concentration of purine and pyrimidine

n the DNA molecule, (a) the proportion of adenine in relation to thymine varies with the organism (b) there are two strands which run anti- parallel-one in 5′ → 3′ direction and other in 3′ → 5′ (c) the total amount of purine nucleotides and pyrimidine nucleotides is not always equal (d) there are two strands which run parallel in the 5′ → 3′ direction.

Description : n the DNA molecule, (a) the proportion of adenine in relation to thymine varies with the organism (b) there are two strands which run anti- parallel-one in 5′ → 3′ direction and other in 3′ → ... is not always equal (d) there are two strands which run parallel in the 5′ → 3′ direction.

Last Answer : (b) there are two strands which run anti- parallel-one in 5′ → 3′ direction and other in 3′ → 5′

Adenine is (a) purine (b) pyrimidine (c) nucleoside (d) nucleotide.

Description : Adenine is (a) purine (b) pyrimidine (c) nucleoside (d) nucleotide.

Last Answer : (a) purine

Uridine, present only in RNA is a (a) nucleoside (b) nucleotide (c) purine (d) pyrimidine.

Description : Uridine, present only in RNA is a (a) nucleoside (b) nucleotide (c) purine (d) pyrimidine.

Last Answer : a) nucleoside

Alkylating agents exert cytotoxic action by inducing: A. Breakage of DNA strand B. Cross linking of DNA strands C. Abnormal pairing of purine and pyrimidine bases D. All of the above

Description : Alkylating agents exert cytotoxic action by inducing: A. Breakage of DNA strand B. Cross linking of DNA strands C. Abnormal pairing of purine and pyrimidine bases D. All of the above

Last Answer : D. All of the above

Milk is a good source of all water-soluble vitamins except for ___ a) Cyanocobalamin b) Riboflavin c) Ascorbic Acid d) Thiamine

Description : Milk is a good source of all water-soluble vitamins except for ___ a) Cyanocobalamin b) Riboflavin c) Ascorbic Acid d) Thiamine

Last Answer : c) Ascorbic Acid

A substituted pyrimidine base of pharmacological value is (A) 5-Iododeoxyuridine (B) Cytisine arabinoside (C) 5-Fluorouracil (D) All of these

Description : A substituted pyrimidine base of pharmacological value is (A) 5-Iododeoxyuridine (B) Cytisine arabinoside (C) 5-Fluorouracil (D) All of these

Last Answer : Answer : C

Which one of the following is a fat-soluble vitamin and its related deficiency disease

Description : Which one of the following is a fat-soluble vitamin and its related deficiency disease

Last Answer : Which one of the following is a fat-soluble vitamin and its related deficiency disease A. ... Retinol - Xerophthalmia D. Cobalamine - Beri-beri

Which one of the following is a fat-soluble vitamin and its related deficiency disease

Description : Which one of the following is a fat-soluble vitamin and its related deficiency disease

Last Answer : Which one of the following is a fat-soluble vitamin and its related deficiency disease A. ... C. Cobalamine-Beri-beri D. Calciferol-Pellagra

Which one of the following is a fat-soluble vitamin and its related deficiency disease? (a) Retinol - Xerophthalmia (b) Cobalamine - Beri-beri (c) Calciferol - Pellagra (d) Ascorbic acid - Scurvy

Description : Which one of the following is a fat-soluble vitamin and its related deficiency disease? (a) Retinol - Xerophthalmia (b) Cobalamine - Beri-beri (c) Calciferol - Pellagra (d) Ascorbic acid - Scurvy

Last Answer : (a) Retinol - Xerophthalmia

Coenzyme A contains the vitamin: (A) Riboflavin (B) Pantothenic acid (C) Pyridoxine (D) Thiamine

Description : Coenzyme A contains the vitamin: (A) Riboflavin (B) Pantothenic acid (C) Pyridoxine (D) Thiamine

Last Answer : Answer : B

Whole wheat is an excellent source of (A) Vitamin D (B) Vitamin C (C) Vitamin A (D) Thiamine

Description : Whole wheat is an excellent source of (A) Vitamin D (B) Vitamin C (C) Vitamin A (D) Thiamine

Last Answer : Answer : D

Methyl malonic aciduria is seen in a deficiency of (A) Vitamin B6 (B) Folic acid (C) Thiamine (D) Vitamin B12

Description : Methyl malonic aciduria is seen in a deficiency of (A) Vitamin B6 (B) Folic acid (C) Thiamine (D) Vitamin B12

Last Answer : Answer : D

Which ot the following vitamin is involved in coenzyme function in transaminations? (A) Nicotinamide (B) Pyridoxine (C) Thiamine (D) Riboflavin

Description : Which ot the following vitamin is involved in coenzyme function in transaminations? (A) Nicotinamide (B) Pyridoxine (C) Thiamine (D) Riboflavin

Last Answer : Answer : B

The three vitamins which are specially required for proper nerve functions are (A) Thiamine, Niacin and Riboflavin (B) Thiamin, Folic acid, Choline (C) Thiamine, Riboflavin, Pantothenic acid (D) Thiamine, Pyridoxin, Vitamin B12

Description : The three vitamins which are specially required for proper nerve functions are (A) Thiamine, Niacin and Riboflavin (B) Thiamin, Folic acid, Choline (C) Thiamine, Riboflavin, Pantothenic acid (D) Thiamine, Pyridoxin, Vitamin B12

Last Answer : Answer : D

The sulphur containing vitamins among the following B Vitamin is (A) Thiamine (B) Riboflavin (C) Niacin (D) Pyridoxine

Description : The sulphur containing vitamins among the following B Vitamin is (A) Thiamine (B) Riboflavin (C) Niacin (D) Pyridoxine

Last Answer : Answer : A

Rice-polishings contain whcih of the following Vitamin? (A) Riboflavin (B) Niacin (C) Thiamine (D) Vitamin B12

Description : Rice-polishings contain whcih of the following Vitamin? (A) Riboflavin (B) Niacin (C) Thiamine (D) Vitamin B12

Last Answer : Answer : C

This is photo labile vitamin: (A) Thiamine (B) Riboflavin (C) Niacin (D) Cholecalciferol

Description : This is photo labile vitamin: (A) Thiamine (B) Riboflavin (C) Niacin (D) Cholecalciferol

Last Answer : Answer : B

The human species can biosynthesize (A) Vitamin C (B) Vitamin B12 (C) Thiamine (D) Niacin

Description : The human species can biosynthesize (A) Vitamin C (B) Vitamin B12 (C) Thiamine (D) Niacin

Last Answer : Answer : D

Methyl malonic aciduria is seen in a deficiency of (A) Vitamin B6 (B) Folic acid (C) Thiamine (D) Vitamin B12

Description : Methyl malonic aciduria is seen in a deficiency of (A) Vitamin B6 (B) Folic acid (C) Thiamine (D) Vitamin B12

Last Answer : Answer : D

Vitamins that function as dinucleotide derivatives include all the following except (A) Thiamine (B) Niacin (C) Nicotinate (D) Vitamin B2

Description : Vitamins that function as dinucleotide derivatives include all the following except (A) Thiamine (B) Niacin (C) Nicotinate (D) Vitamin B2

Last Answer : Answer : A

Which of the following vitamins would most likely become deficient in a person who develops a completely carnivorous life style? (A) Thiamine (B) Niacin (C) Cobalamine (D) Vitamin C

Description : Which of the following vitamins would most likely become deficient in a person who develops a completely carnivorous life style? (A) Thiamine (B) Niacin (C) Cobalamine (D) Vitamin C

Last Answer : Answer : D

Methyl malonic aciduria is seen in the deficiency of (A) Vitamin B6 (B) Folic acid (C) Thiamine (D) Vitamin B12

Description : Methyl malonic aciduria is seen in the deficiency of (A) Vitamin B6 (B) Folic acid (C) Thiamine (D) Vitamin B12

Last Answer : Answer : D

The following vitamin is involved in coenzyme function in transaminations: (A) Nicotinamide (B) Pyridoxine (C) Thiamine (D) Riboflavin

Description : The following vitamin is involved in coenzyme function in transaminations: (A) Nicotinamide (B) Pyridoxine (C) Thiamine (D) Riboflavin

Last Answer : Answer : B

The three vitamins which are specially required for proper nerve functions are acid: (A) Thiamine, niacin and riboflavin (B) Thiamine, folic acid, choline (C) Thiamine, riboflavin, patothenic acid (D) Thiamine, pyridoxin, vitamin B12

Description : The three vitamins which are specially required for proper nerve functions are acid: (A) Thiamine, niacin and riboflavin (B) Thiamine, folic acid, choline (C) Thiamine, riboflavin, patothenic acid (D) Thiamine, pyridoxin, vitamin B12

Last Answer : Answer : D

The sulphur-containing vitamins among the following B-Vitamin is (A) Thiamine (B) Riboflavin (C) Niacin (D) Pyridoxine

Description : The sulphur-containing vitamins among the following B-Vitamin is (A) Thiamine (B) Riboflavin (C) Niacin (D) Pyridoxine

Last Answer : Answer : A