Nucleic Acids - Mock Test 19

Question 181

A ketogenic amino acid among the following is?

A) Leucine B) Serine C) Threonine D) Proline

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Question 182

Congenital deficiency of ornithine transcarbamoylase causes?

A) Hyperammonaemia type I B) Hyperammonaemia type II C) Hyperornithinaemia D) Citrullinaemia

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Question 183

Hyperammonaemia type I results from congenital absence of?

A) Glutamate dehydrogenase B) Carbamoyl phosphate synthetase C) Ornithine transcarbamoylase D) None of these

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Question 184

Inborn errors of urea cycle can cause all the following except?

A) Vomiting B) Ataxia C) Renal failure D) Mental retardation

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Question 185

Inborn errors of urea cycle can cause all the following except?

A) Vomiting B) Ataxia C) Renal failure D) Mental retardation

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Question 186

All the following statements about restriction fragment length polymorphism are true except?

A) It results from mutations in restriction sites B) Mutations in restriction sites can occur in coding or non-coding regions of DNA C) It is inherited in Mendelian fashion D) It can be used to diagnose any genetic disease

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Question 187

DNA finger printing is based on the presence in DNA of?

A) Constant number of tandem repeats B) Varibale number of tandem repeats C) Non-repititive sequences in each DNA D) Introns in eukaryotic DNA

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Question 188

Yeast artificial chromosome can be used to amplify DNA sequences of the size?

A) Upto 10 kb B) Upto 45 kb C) Upto 100 kb D) Upto 1,000 kb

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Question 189

Transgenic animals may be prepared by introducing a foreign gene into?

A) Somatic cells of young animals B) Testes and ovaries of animals C) A viral vector and infecting the animals with the viral vector D) Fertilised egg and implanting the egg into a foster mother

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Question 190

DNA po lymerase of T. aquat icus is preferred to that of E. coli in PCR because?

A) It replicates DNA more efficiently B) It doesn’t require primers C) It is not denatured at the melting temperature of DNA D) It doesn’t cause errors in replication

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