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TLS Online TPP Program

#Question id: 1435

Direct-acting carcinogens are those that:

#Life Sciences

  1. chemically react with nitrogen and phosphorous atoms in DNA.

  2. work in conjunction with cytochrome P-450 in the endoplasmic reticulum.

  3. are mainly reactive electrophiles.

  4. generally unreactive, often water-insoluble compounds that can act as potent cancer inducers only after the introduction of electrophilic centers.

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TLS Online TPP Program

#Question id: 12911

#Life Sciences

Match the following:

A. DNA polymerasesi. Alkaline phosphatasea. RNA-dependent DNA polymerase, used in cDNA synthesis           
B. Reverse transcriptaseii. T4 DNA ligaseb. Thermostable DNA polymerase used in PCR
C. Ligasesiii. AMV-RTc. Removes 5'-phosphates from DNA and RNA
D. Phosphatasesiv. Taq DNA pold. Links 5'-phosphate and 3'-hydroxyl ends via phosphodiester bond
TLS Online TPP Program

#Question id: 12911

#Applied Microbiology

Match the following:

A. DNA polymerasesi. Alkaline phosphatasea. RNA-dependent DNA polymerase, used in cDNA synthesis           
B. Reverse transcriptaseii. T4 DNA ligaseb. Thermostable DNA polymerase used in PCR
C. Ligasesiii. AMV-RTc. Removes 5'-phosphates from DNA and RNA
D. Phosphatasesiv. Taq DNA pold. Links 5'-phosphate and 3'-hydroxyl ends via phosphodiester bond
TLS Online TPP Program

#Question id: 12911

#Bio-Informatics

Match the following:

A. DNA polymerasesi. Alkaline phosphatasea. RNA-dependent DNA polymerase, used in cDNA synthesis           
B. Reverse transcriptaseii. T4 DNA ligaseb. Thermostable DNA polymerase used in PCR
C. Ligasesiii. AMV-RTc. Removes 5'-phosphates from DNA and RNA
D. Phosphatasesiv. Taq DNA pold. Links 5'-phosphate and 3'-hydroxyl ends via phosphodiester bond
TLS Online TPP Program

#Question id: 12912

#Zoology

Name the enzyme which separates the double-helical DNA into single strands.
TLS Online TPP Program

#Question id: 12912

#Life Sciences

Name the enzyme which separates the double-helical DNA into single strands.
TLS Online TPP Program

#Question id: 12912

#Applied Microbiology

Name the enzyme which separates the double-helical DNA into single strands.