The following cannot be salvaged in human beings: (A) Cytidine (B) Deoxycytidine (C) Cytosine (D) Thymidine

The following cannot be salvaged in human beings: (A) Cytidine (B) Deoxycytidine (C) Cytosine (D) Thymidine
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An enzyme of pyrimidine nucleotides biosynthesis regulated at the genetic level by apparently coordinate repression and derepression is (A) Carbamoyl phosphate synthetase (B) Dihydroorotate dehydrogenase (C) Thymidine kinase (D) Deoxycytidine kinase

Description : An enzyme of pyrimidine nucleotides biosynthesis regulated at the genetic level by apparently coordinate repression and derepression is (A) Carbamoyl phosphate synthetase (B) Dihydroorotate dehydrogenase (C) Thymidine kinase (D) Deoxycytidine kinase

Last Answer : Answer : A

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

Description : 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

Last Answer : Answer : B

Hybridoma cells are selected by culturing them in a medium containing (A) Adenine, guanine, cytosine and thymine (B) Adenine, guanine, cytosine and uracil (C) Hypoxanthine, aminopterin and thymine (D) Hypoxanthine, aminopterin and thymidine

Description : Hybridoma cells are selected by culturing them in a medium containing (A) Adenine, guanine, cytosine and thymine (B) Adenine, guanine, cytosine and uracil (C) Hypoxanthine, aminopterin and thymine (D) Hypoxanthine, aminopterin and thymidine

Last Answer : Answer : D

All of the following occur in orotic aciduria except (A) Increased synthesis of pyrimidine nucleotides (B) Increased excretion of orotic acid in urine (C) Decreased synthesis of cytidine triphosphate (D) Retardation of growth

Description : All of the following occur in orotic aciduria except (A) Increased synthesis of pyrimidine nucleotides (B) Increased excretion of orotic acid in urine (C) Decreased synthesis of cytidine triphosphate (D) Retardation of growth

Last Answer : Answer : A

Uracil and ribose form (A) Uridine (B) Cytidine (C) Guanosine (D) Adenosine

Description : Uracil and ribose form (A) Uridine (B) Cytidine (C) Guanosine (D) Adenosine

Last Answer : Answer : A

Deoxycytidine kinase can salvage (A) Adenosine (B) Adenosine and deoxyadenosine (C) Adenosine and guanosine (D) Adenine and adenosine

Description : Deoxycytidine kinase can salvage (A) Adenosine (B) Adenosine and deoxyadenosine (C) Adenosine and guanosine (D) Adenine and adenosine

Last Answer : Answer : D

Phosphorylation of adenosine to AMP is catalysed by (A) Adenosine kinase (B) Deoxycytidine kinase (C) Adenylosuccinase (D) Adenylosuccinate synthetase

Description : Phosphorylation of adenosine to AMP is catalysed by (A) Adenosine kinase (B) Deoxycytidine kinase (C) Adenylosuccinase (D) Adenylosuccinate synthetase

Last Answer : Answer : A

Free purine bases which can be salvaged are (A) Adenine and guanine (B) Adenine and hypoxanthine (C) Guanine and hypoxanthine (D) Adenine, guanine and hypoxanthine

Description : Free purine bases which can be salvaged are (A) Adenine and guanine (B) Adenine and hypoxanthine (C) Guanine and hypoxanthine (D) Adenine, guanine and hypoxanthine

Last Answer : Answer : D

Methotrexate blocks the synthesis of thymidine monophosphate by inhibiting the activity of the enzyme: (A) Dihydrofolate reductase (B) Orotate phosphoribosyl transferase (C) Ribonucleotide reductase (D) Dihydroorotase

Description : Methotrexate blocks the synthesis of thymidine monophosphate by inhibiting the activity of the enzyme: (A) Dihydrofolate reductase (B) Orotate phosphoribosyl transferase (C) Ribonucleotide reductase (D) Dihydroorotase

Last Answer : Answer : A

Conversion of deoxyuridine monophosphate to thymidine monophosphate is catalysed by the enzyme: (A) Ribonucleotide reductase (B) Thymidylate synthetase (C) CTP synthetase (D) Orotidylic acid decarboxylase

Description : Conversion of deoxyuridine monophosphate to thymidine monophosphate is catalysed by the enzyme: (A) Ribonucleotide reductase (B) Thymidylate synthetase (C) CTP synthetase (D) Orotidylic acid decarboxylase

Last Answer : Answer : B

In tRNA molecule D arm is named for the presence of the base: (A) Uridine (B) Pseudouridine (C) Dihydrouridine (D) Thymidine

Description : In tRNA molecule D arm is named for the presence of the base: (A) Uridine (B) Pseudouridine (C) Dihydrouridine (D) Thymidine

Last Answer : Answer : A

Both Acyl carrier protein (ACP) of fatty acid synthetase and coenzyme (CoA) are (A) Contain reactive phosphorylated (B) Contain thymidine (C) Contain phosphopantetheine reactive groups (D) Contain cystine reactive groups

Description : Both Acyl carrier protein (ACP) of fatty acid synthetase and coenzyme (CoA) are (A) Contain reactive phosphorylated (B) Contain thymidine (C) Contain phosphopantetheine reactive groups (D) Contain cystine reactive groups

Last Answer : Answer : C

Cellulose and starch are polysaccharides made of glucose, but cellulose cannot be digest by human beings, why?

Description : Cellulose and starch are polysaccharides made of glucose, but cellulose cannot be digest by human beings, why? 

Last Answer : Cellulose contains beta 1,4 linkages, which cannot be digested by human enzymes.

Why should I avoid buying a car with a salvaged title?

Description : Why should I avoid buying a car with a salvaged title?

Last Answer : answer:Often times, salvage titles are given to vehicles that cost more than they are worth to repair, assuming they even really can be repaired. Often times a car with a Salvage title will have been ... It would be bad to have a crash and find out your airbags were replaced with stuffed newspaper.

I need to replace the brake booster on my Suburban. Would getting a salvaged brake booster be OK?

Description : I need to replace the brake booster on my Suburban. Would getting a salvaged brake booster be OK?

Last Answer : I feel your pain with the cost but anything dealing with brakes I buy new.

Can chivalry be salvaged? Is there still a place for it in society?

Description : Can chivalry be salvaged? Is there still a place for it in society?

Last Answer : No it is not dead in my area- but it has become more rare and thus it is even more appreciated.

How much building debris is salvaged after a natural disaster?

Description : How much building debris is salvaged after a natural disaster?

Last Answer : Most people hire demolition/cleanup crews whos main interest is quick money. Restoration and salvage is not "quick" money in comparison to demolition. They actually get more money to clear out quickly, so ... want their life back ASAP. Therefore salvage take a low priority. It is ashamed but true.

Can unripe pecans be salvaged when a limb falls?

Description : Can unripe pecans be salvaged when a limb falls?

Last Answer : I hpe that worked for you and now you need to trim those branches.

Is it safe to purchase scrap from salvaged cars?

Description : Is it safe to purchase scrap from salvaged cars?

Last Answer : It is very difficult to by a salvaged cars. In some cases the vehicle is in good enough shape that with some repair it can be road worthy again so it is sold with a salvage title. When the vehicle is inspected and once again registered a normal title will be issued.

Where can you buy a salvaged car in New Mexico?

Description : Where can you buy a salvaged car in New Mexico?

Last Answer : There are many salvage yards in New Mexico. The website http://www.usedpartscentral.com/search_new_mexico.htm provides a list of the salvage yards along with their phone numbers and addresses.

DNA synthesis can be specifically measured by estimating the incorporation of radio-labelled (a) thymidine (b) deoxyribose sugar (c) uracil (d) adenine.

Description : DNA synthesis can be specifically measured by estimating the incorporation of radio-labelled (a) thymidine (b) deoxyribose sugar (c) uracil (d) adenine.

Last Answer : (c) uracil

DNA synthesis can be specifically measured by estimating the incorporation of radio-labelled (a) thymidine (b) deoxyribose sugar (c) uracil (d) adenine.

Description : DNA synthesis can be specifically measured by estimating the incorporation of radio-labelled (a) thymidine (b) deoxyribose sugar (c) uracil (d) adenine.

Last Answer : (a) thymidine

The antiviral action of amantadine is exerted through: A. Interaction with the viral M2 protein B. Interaction with a virus directed thymidine kinase C. Inhibition of a viral protease enzyme D. Inhibition of viral RNA mediated DNA synthesi

Description : The antiviral action of amantadine is exerted through: A. Interaction with the viral M2 protein B. Interaction with a virus directed thymidine kinase C. Inhibition of a viral protease enzyme D. Inhibition of viral RNA mediated DNA synthesi

Last Answer : A. Interaction with the viral M2 protein

That sulfonamides act by inhibiting folate synthesis in bacteria is supported by the following findings except: A. Paraaminobenzoic acid antagonises the action of sulfonamides B. Methionine antagonises the action of sulfonamides C. Purines and thymidine present in pus antagonise the action of sulfonamides D. Bacteria that utilise folic acid taken up from the medium are insensitive to sulfonamides

Description : That sulfonamides act by inhibiting folate synthesis in bacteria is supported by the following findings except: A. Paraaminobenzoic acid antagonises the action of sulfonamides B. Methionine antagonises ... . Bacteria that utilise folic acid taken up from the medium are insensitive to sulfonamides

Last Answer : B. Methionine antagonises the action of sulfonamides

In RNA, apart from ribose and phosphate, all following are present except (A) Adenine (B) Guanine (C) Thymine (D) Cytosine

Description : In RNA, apart from ribose and phosphate, all following are present except (A) Adenine (B) Guanine (C) Thymine (D) Cytosine

Last Answer : Answer : C

Whcih of the following compound is present in RNA but absent from DNA? (A) Thymine (B) Cytosine (C) Uracil (D) Guanine

Description : Whcih of the following compound is present in RNA but absent from DNA? (A) Thymine (B) Cytosine (C) Uracil (D) Guanine

Last Answer : Answer : C

RNA does not contain (A) adenine (B) OH methyl cytosine (C) d-ribose (D) Uracil

Description : RNA does not contain (A) adenine (B) OH methyl cytosine (C) d-ribose (D) Uracil

Last Answer : Answer : B

Acid hydrolysis of ribonucleic acid would yield the following major products: (A) d- deoxyribose, cytosine, adenine (B) d-ribose, thymine, Guanine (C) d-ribose, cytosine, uracil, thymine (D) d-ribose, uracil, adenine, guanine, cytosine

Description : Acid hydrolysis of ribonucleic acid would yield the following major products: (A) d- deoxyribose, cytosine, adenine (B) d-ribose, thymine, Guanine (C) d-ribose, cytosine, uracil, thymine (D) d-ribose, uracil, adenine, guanine, cytosine

Last Answer : Answer : D

Which of the following statements about nucleic acid is most correct? (A) Both pentose nucleic acid and deoxypentose nucleic acid contain the same pyrimidines (B) Both pentose nucleic acid and deoxypentose nucleic acid and deoxypentose nucleic acid Contain the same purines (C) RNA contains cytosine and thymine (D) DNA and RNA are hydrolysed by weak alkali

Description : Which of the following statements about nucleic acid is most correct? (A) Both pentose nucleic acid and deoxypentose nucleic acid contain the same pyrimidines (B) Both pentose nucleic acid and deoxypentose ... (C) RNA contains cytosine and thymine (D) DNA and RNA are hydrolysed by weak alkali

Last Answer : Answer : B

Nitrosamine can deaminate (A) Cytosine to form uracil (B) Adenine to form xanthine (C) Guanine to form hypoxanthine (D) All of these

Description : Nitrosamine can deaminate (A) Cytosine to form uracil (B) Adenine to form xanthine (C) Guanine to form hypoxanthine (D) All of these

Last Answer : Answer : A

In RNA, the complementary base of adenine is (A) Cytosine (B) Guanine (C) Thymine (D) Uracil

Description : In RNA, the complementary base of adenine is (A) Cytosine (B) Guanine (C) Thymine (D) Uracil

Last Answer : Answer : D

β -Alanine is formed from catabolism of (A) Thymine (B) Thymine and cytosine (C) Thymine and uracil (D) Cytosine and uracil

Description : β -Alanine is formed from catabolism of (A) Thymine (B) Thymine and cytosine (C) Thymine and uracil (D) Cytosine and uracil

Last Answer : Answer : D

Free ammonia is liberated during the catabolism of (A) Cytosine (B) Uracil (C) Thymine (D) All of these

Description : Free ammonia is liberated during the catabolism of (A) Cytosine (B) Uracil (C) Thymine (D) All of these

Last Answer : Answer : D

β -Aminoisobytyrate is formed from catabolism of (A) Cytosine (B) Uracil (C) Thymine (D) Xanthine

Description : β -Aminoisobytyrate is formed from catabolism of (A) Cytosine (B) Uracil (C) Thymine (D) Xanthine

Last Answer : Answer : C

Number of guanine and cytosine residues is equal in (A) mRNA (B) tRNA (C) DNA (D) None of these

Description : Number of guanine and cytosine residues is equal in (A) mRNA (B) tRNA (C) DNA (D) None of these

Last Answer : Answer : C

In DNA, three hydrogen bonds are formed between (A) Adenine and guanine (B) Adenine and thymine (C) Guanine and cytosine (D) Thymine and cytosine

Description : In DNA, three hydrogen bonds are formed between (A) Adenine and guanine (B) Adenine and thymine (C) Guanine and cytosine (D) Thymine and cytosine

Last Answer : Answer : C

In DNA, the complementary base of adenine is (A) Guanine (B) Cytosine (C) Uracil (D) Thymine

Description : In DNA, the complementary base of adenine is (A) Guanine (B) Cytosine (C) Uracil (D) Thymine

Last Answer : Answer : D

A nitrogenous base that does not occur in mRNA is (A) Cytosine (B) Thymine (C) Uracil (D) All of these

Description : A nitrogenous base that does not occur in mRNA is (A) Cytosine (B) Thymine (C) Uracil (D) All of these

Last Answer : Answer : A

The most likely lethal mutation is (A) Substitution of adenine for cytosine (B) Insertion of one nucleotide (C) Deletion of three nucleotides (D) Substitution of cytosine for guanine

Description : The most likely lethal mutation is (A) Substitution of adenine for cytosine (B) Insertion of one nucleotide (C) Deletion of three nucleotides (D) Substitution of cytosine for guanine

Last Answer : Answer : B

A synthetic nucleotide analogue, used in the chemotherapy of cancer and viral infections is (A) Arabinosyl cytosine (B) 4-Hydroxypyrazolopyrimidine (C) 6-Mercaptopurine (D) 6-Thioguanine

Description : A synthetic nucleotide analogue, used in the chemotherapy of cancer and viral infections is (A) Arabinosyl cytosine (B) 4-Hydroxypyrazolopyrimidine (C) 6-Mercaptopurine (D) 6-Thioguanine

Last Answer : Answer : A

An increased melting temperature of duplex DNA results from a high content of (A) Adenine + Guanine (B) Thymine + Cytosine (C) Cytosine + Guanine (D) Cytosine + Adenine

Description : An increased melting temperature of duplex DNA results from a high content of (A) Adenine + Guanine (B) Thymine + Cytosine (C) Cytosine + Guanine (D) Cytosine + Adenine

Last Answer : Answer : C

In DNA molecule (A) Guanine content does not equal cytosine content (B) Adenine content does not equal thymine content (C) Adenine content equals uracil content (D) Guanine content equals cytosine content

Description : In DNA molecule (A) Guanine content does not equal cytosine content (B) Adenine content does not equal thymine content (C) Adenine content equals uracil content (D) Guanine content equals cytosine content

Last Answer : Answer : D

In RNA molecule (A) Guanine content equals cytosine (B) Adenine content equals uracil (C) Adenine content equals guanine (D) Guanine content does not necessarily equal its cytosine content.

Description : In RNA molecule (A) Guanine content equals cytosine (B) Adenine content equals uracil (C) Adenine content equals guanine (D) Guanine content does not necessarily equal its cytosine content.

Last Answer : Answer : D

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

The nucleic acid base found in mRNA but not in DNA is (A) Adenine (B) Cytosine (C) Guanine (D) Uracil

Description : The nucleic acid base found in mRNA but not in DNA is (A) Adenine (B) Cytosine (C) Guanine (D) Uracil

Last Answer : Answer : D

RNA does not contain (A) Uracil (B) Adenine (C) Hydroxy methyl cytosine (D) Phosphate

Description : RNA does not contain (A) Uracil (B) Adenine (C) Hydroxy methyl cytosine (D) Phosphate

Last Answer : Answer : C

The element needed in quantities greater than 100 mg for human beings is (A) Calcium (B) Zinc (C) Selenium (D) Cobalt

Description : The element needed in quantities greater than 100 mg for human beings is (A) Calcium (B) Zinc (C) Selenium (D) Cobalt

Last Answer : Answer : A

Genetic information in human beings is stored in (A) RNA (B) DNA (C) Both (A) and (B) (D) mRNA

Description : Genetic information in human beings is stored in (A) RNA (B) DNA (C) Both (A) and (B) (D) mRNA

Last Answer : Answer : B

Genetic information in human beings is stored in (A) DNA (B) RNA (C) Both (A) and (B) (D) None of these

Description : Genetic information in human beings is stored in (A) DNA (B) RNA (C) Both (A) and (B) (D) None of these

Last Answer : Answer : A

All the following statements about protooncogenes are true except (A) They are present in human beings (B) They are present in healthy cells (C) Proteins encoded by them are essential (D) They are expressed only when a healthy cell has been transformed into a cancer cell

Description : All the following statements about protooncogenes are true except (A) They are present in human beings (B) They are present in healthy cells (C) Proteins encoded by them are essential (D) They are expressed only when a healthy cell has been transformed into a cancer cell

Last Answer : Answer : D