Description : Which of the following cut the DNA from specific places? (a) E.coli restriction endonuclease I (b) Ligase (c) Exonuclease (d) Alkaline phosphate
Last Answer : (a) E.coli restriction endonuclease I
Description : Which one of the following hydrolyses internal phosphodiester bonds in a polynucleotide chain? (a) Lipase (b) Protease (c) Endonuclease (d) Exonuclease
Last Answer : (c) Endonuclease
Last Answer : c) G + C / A + T
Description : 1. Bacteria protect themselves from viruses by fragmenting viral DNA with a. Ligase b. Endonuclease c. Exonuclease d. Gyrase
Last Answer : Ans: Endonuclease.
Description : What does exonuclease do? -Biology
Last Answer : answer:
Description : What is exonuclease activity of DNA polymerase? -Biology
Description : What is exonuclease activity?
Last Answer : What is the answer ?
Description : 3’→5’ Exonuclease activity of DNA polymerase I (A) Removes ribonucleotides (B) Adds deoxyribonucleotides (C) Corrects errors in replication (D) Hydrolyses DNA into mononucleotides
Last Answer : Answer : C
Description : DNA polymerase I possesses (A) Polymerase activity (B) 3’→5’ Exonuclease activity (C) 5’→3’ Exonuclease activity (D) All of these
Last Answer : Answer : D
Description : DNA polymerase III holoenzyme possesses (A) Polymerase activity (B) 3’→5’ Exonuclease activity (C) 5’→3’ Exonuclease and polymerase activities (D) 3’→5’ Exonuclease and polymerase activities
Description : What determines where a restriction endonuclease cuts? -Biology
Description : Function of restriction endonuclease in bacteria -Biology
Description : What is restriction endonuclease used for? -Biology
Description : In sticky ends produced by restriction endonucleases (A) The 2 strands of DNA are joined to each other (B) The DNA strands stick to the restriction endonuclease (C) The ends of a double stranded fragment are overlapping (D) The ends of a double stranded fragment are non overlapping
Description : The enzyme used in polymerase chain reaction (PCR) is (A) Taq polymerase (B) RNA polymerase (C) Ribonuclease (D) Endonuclease
Description : Genetic engineering requires enzyme: (A) DNA ase (B) Amylase (C) Lipase (D) Restriction endonuclease
Description : Recombinant DNA is achieved by cleaving the pro-DNAs by (a) ligase (b) restriction endonuclease (c) primase (d) exonucleases.
Last Answer : (b) restriction endonuclease
Description : Which of the following enzymes are used to join bits of DNA? (a) Ligase (b) Primase (c) DNA polymerase (d) Endonuclease
Last Answer : a) Ligase
Description : Restriction endonuclease (a) synthesizes DNA (b) cuts the DNA molecule randomly (c) cuts the DNA molecule at specific sites (d) restricts the synthesis of DNA inside the nucleus.
Last Answer : (c) cuts the DNA molecule at specific sites
Description : There is a restriction endonuclease called EcoRI. What does “co” part in it stand for? (a) colon (b) coelom (c) coenzyme (d) coli
Last Answer : (d) coli
Description : Which of the following is a restriction endonuclease? (a) DNase I (b) RNase (c) Hind II (d) Protease
Last Answer : (c) Hind II
Description : A foreign DNA and plasmid cut by the same restriction endonuclease can be joined to form a recombinant plasmid using (a) EcoRI (b) Taq polymerase (c) polymerase III (d) ligase.
Last Answer : (d) ligase.
Description : Following statements describe the characteristics of the enzyme restriction endonuclease. Identify the incorrect statement. (a) The enzyme recognises a specific palindromic nucleotide sequence in the DNA. (b) ... (d) The enzyme cuts the sugar-phosphate backbone at specific sites on each strand.
Last Answer : (c) The enzyme binds DNA at specific sites and cuts only one of the two strands.
Description : Manipulation of DNA in genetic engineering became possible due to the discovery of (a) restriction endonuclease (b) DNA ligase (c) transcriptase (d) primase
Last Answer : (a) restriction endonuclease
Description : A seals sticky ends of recombinant DNA segments. a. DNA Ligase b. restriction endonuclease c. protease d. RNA polymerase
Last Answer : b. restriction endonuclease
Description : Which complementary sequence would NOT be recognized by a restriction endonucLease? a. GAATTC CTTAAG b. AAGCTT TTCGAA c. GTCGAC CAGCTG d. AATTCCTTAAGG
Last Answer : d. AATTCCTTAAGG
Description : Which of the following statement is correct? A- The size and sequence of introns can be deduced from the cDNA sequence B- Restriction endonuclease can cleave ss and dsDNA both C- Restriction ... sequenceof a gene D- Amino acid sequence of a protein can be deduced from corresponding cDNA nucleotide
Last Answer : Amino acid sequence of a protein can be deduced from corresponding cDNA nucleotide
Description : Which of the following statement is correct? A- The size and sequence of introns can be deduced from the cDNA sequence B- .Restriction endonuclease can cleave ss and dsDNA both C- Restriction ... of a Gene D- Amino acid sequence of a protein can be deduced from corresponding cDNA nucleotide
Description : Enzyme which can break and seal the DNA strand a) Topoisomease II (b) Helicase (c) Primase (d) Restriction endonuclease
Last Answer : a) Topoisomease II