Genetic engineering is possible, because (a) we can cut DNA at specific sites by endonucleases like DNase I (b) restriction endonucleases purified from bacteria can be used in vitro (c) the phenomenon of transduction in bacteria is well understood (d) we can see DNA by electron microscope

Genetic engineering is possible, because
(a) we can cut DNA at specific sites by endonucleases
like DNase I
(b) restriction endonucleases purified from bacteria
can be used in vitro
(c) the phenomenon of transduction in bacteria is
well understood
(d) we can see DNA by electron microscope
by

1 Answer

Answer :

(b) restriction endonucleases purified from bacteria
can be used in vitro
by

Related questions

Restriction endonucleases are (a) used for in vitro DNA synthesis (b) used in genetic engineering (c) synthesized by bacteria (d) present in mammalian cells for degradation of DNA.

Description : Restriction endonucleases are (a) used for in vitro DNA synthesis (b) used in genetic engineering (c) synthesized by bacteria (d) present in mammalian cells for degradation of DNA.

Last Answer : (b) used in genetic engineering

Restriction endonucleases (a) are present in mammalian cells for degradation of DNA when the cell dies (b) are used in genetic engineering for ligating two DNA molecules (c) are used for in vitro DNA synthesis (d) are synthesized by bacteria as part of their defense mechanism.

Description : Restriction endonucleases (a) are present in mammalian cells for degradation of DNA when the cell dies (b) are used in genetic engineering for ligating two DNA molecules (c) are used for in vitro DNA synthesis (d) are synthesized by bacteria as part of their defense mechanism.

Last Answer : (d) are synthesized by bacteria as part of their defense mechanism.

The restriction enzymes are used in genetic engineering, because (a) they can cut DNA at specific base sequence (b) they are nucleases that cut DNA at variable sites (c) they can degrade harmful proteins (d) they can join different DNA fragments.

Description : The restriction enzymes are used in genetic engineering, because (a) they can cut DNA at specific base sequence (b) they are nucleases that cut DNA at variable sites (c) they can degrade harmful proteins (d) they can join different DNA fragments.

Last Answer : (a) they can cut DNA at specific base sequence

Identify the wrong statement with regard to restriction enzymes. (a) Each restriction enzyme functions by inspecting the length of a DNA sequence. (b) They cut the strand of DNA at palindromic sites. (c) They are useful in genetic engineering. (d) Sticky ends can be joined by using DNA ligases.

Description : Identify the wrong statement with regard to restriction enzymes. (a) Each restriction enzyme functions by inspecting the length of a DNA sequence. (b) They cut the strand of DNA at palindromic sites. (c) They are useful in genetic engineering. (d) Sticky ends can be joined by using DNA ligases.

Last Answer : d) Sticky ends can be joined by using DNA ligases.

Restriction endonucleases (A) Cut RNA chains at specific locations (B) Excise introns from hnRNA (C) Remove Okazaki fragments (D) Act as defensive enzymes to protect the host bacterial DNA from DNA of foreign organisms

Description : Restriction endonucleases (A) Cut RNA chains at specific locations (B) Excise introns from hnRNA (C) Remove Okazaki fragments (D) Act as defensive enzymes to protect the host bacterial DNA from DNA of foreign organisms

Last Answer : Answer : D

he molecular scissors use3d to cut DNA into specific genes of interest are called (a) Exonucleases (b) Restriction endonucleases (c) Ligases (d) Polymerases

Description : he molecular scissors use3d to cut DNA into specific genes of interest are called (a) Exonucleases (b) Restriction endonucleases (c) Ligases (d) Polymerases

Last Answer : (b) Restriction endonucleases

The normal function of restriction endonucleases is to (A) Excise introns from hrRNA (B) Polymerize nucleotides to form RNA (C) Remove primer from okazaki fragments (D) Protect bacteria from foreign DNA

Description : The normal function of restriction endonucleases is to (A) Excise introns from hrRNA (B) Polymerize nucleotides to form RNA (C) Remove primer from okazaki fragments (D) Protect bacteria from foreign DNA

Last Answer : Answer : D

All of the following statements about restriction endonucleases are true except: (A) They are present in bacteria (B) They act on double stranded DNA (C) They recognize palindromic sequences (D) They always produce sticky ends

Description : All of the following statements about restriction endonucleases are true except: (A) They are present in bacteria (B) They act on double stranded DNA (C) They recognize palindromic sequences (D) They always produce sticky ends

Last Answer : Answer : D

Without restriction endonucleases, it would be very difficult to a. Force Plasmids into Bacteria. b. Chemically Open Dna Molecules. c. Replicate Dna In A Recombinant Cell. d. Bring About Mutations In Bacteria.

Description : Without restriction endonucleases, it would be very difficult to a. Force Plasmids into Bacteria. b. Chemically Open Dna Molecules. c. Replicate Dna In A Recombinant Cell. d. Bring About Mutations In Bacteria.

Last Answer : b. Chemically Open Dna Molecules.

Restriction endonucleases recognize and cut a certain sequence of (A) Single stranded DNA (B) Double stranded DNA (C) RNA (D) Protein

Description : Restriction endonucleases recognize and cut a certain sequence of (A) Single stranded DNA (B) Double stranded DNA (C) RNA (D) Protein

Last Answer : Answer : B

Restriction endonucleases are enzymes which (a) make cuts at specific positions within the DNA molecule (b) recognize a specific nucleotide sequence for binding of DNA ligase (c) restrict the action of the enzyme DNA polymerase (d) remove nucleotides from the ends of the DNA molecule

Description : Restriction endonucleases are enzymes which (a) make cuts at specific positions within the DNA molecule (b) recognize a specific nucleotide sequence for binding of DNA ligase (c) restrict the action of the enzyme DNA polymerase (d) remove nucleotides from the ends of the DNA molecule

Last Answer : (a) make cuts at specific positions within the DNA molecule

Manipulation of DNA in genetic engineering became possible due to the discovery of (a) restriction endonuclease (b) DNA ligase (c) transcriptase (d) primase

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

Restriction endonucleases are present in (A) Viruses (B) Bacteria (C) Eukaryotes (D) All of these

Description : Restriction endonucleases are present in (A) Viruses (B) Bacteria (C) Eukaryotes (D) All of these

Last Answer : Answer : B

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 : 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

Last Answer : Answer : C

Restriction endonucleases can recognise (A) Palindromic sequences (B) Chimeric DNA (C) DNA-RNA hybrids (D) Homopolymer sequences

Description : Restriction endonucleases can recognise (A) Palindromic sequences (B) Chimeric DNA (C) DNA-RNA hybrids (D) Homopolymer sequences

Last Answer : Answer : A

Restriction endonucleases split (A) RNA (B) Single stranded DNA (C) Double stranded DNA (D) DNA-RNA hybrids

Description : Restriction endonucleases split (A) RNA (B) Single stranded DNA (C) Double stranded DNA (D) DNA-RNA hybrids

Last Answer : Answer : C

The DNA fragments produced by the use of restriction endonucleases can be separated by

Description : 4. The DNA fragments produced by the use of restriction endonucleases can be separated by (a) polymerase chain reaction (b) gel electrophoresis (c) density gradient centrifugation (d) any of the above.

Last Answer : gel electrophoresis

Genetic engineering requires enzyme: (A) DNA ase (B) Amylase (C) Lipase (D) Restriction endonuclease

Description : Genetic engineering requires enzyme: (A) DNA ase (B) Amylase (C) Lipase (D) Restriction endonuclease

Last Answer : Answer : D

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

Description : 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- ... It is inherited in Mendelian fashion (D) It can be used to diagnose any genetic disease

Last Answer : Answer : D

Which of the following is a restriction endonuclease? (a) DNase I (b) RNase (c) Hind II (d) Protease

Description : Which of the following is a restriction endonuclease? (a) DNase I (b) RNase (c) Hind II (d) Protease

Last Answer : (c) Hind II

Production of a human protein in bacteria by genetic engineering is possible because (a) the human chromosome can replicate in bacterial cell (b) the mechanism of gene regulation is identical in humans and bacteria (c) bacterial cell can carry out the RNA splicing reactions (d) the genetic code is universal.

Description : Production of a human protein in bacteria by genetic engineering is possible because (a) the human chromosome can replicate in bacterial cell (b) the mechanism of gene regulation is identical in ... ) bacterial cell can carry out the RNA splicing reactions (d) the genetic code is universal.

Last Answer : (d) the genetic code is universal.

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.

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

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) The enzyme cuts DNA molecule at identified position within the DNA. (c) The enzyme binds DNA at specific sites and cuts only one of the two strands. (d) The enzyme cuts the sugar-phosphate backbone at specific sites on each strand.

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.

Do eukaryotic cells have restriction endonucleases? -Biology

Description : Do eukaryotic cells have restriction endonucleases? -Biology

Last Answer : answer:

Hershey and Chase experiment proving DNA as the genetic material was based on the principle a) Transduction b) transformation c) transcription d) translation

Description : Hershey and Chase experiment proving DNA as the genetic material was based on the principle a) Transduction b) transformation c) transcription d) translation

Last Answer : a) Transduction

Which of the following cut the DNA from specific places? (a) E.coli restriction endonuclease I (b) Ligase (c) Exonuclease (d) Alkaline phosphate

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

Which statement is correct for bacterial transduction? (a) Transfer of some genes from one bacteria to another bacteria through virus. (b) Transfer of genes from one bacteria to another bacteria by conjugation. (c) Bacteria obtained its DNA directly from mother cell. (d) Bacteria obtained DNA from other external source.

Description : Which statement is correct for bacterial transduction? (a) Transfer of some genes from one bacteria to another bacteria through virus. (b) Transfer of genes from one bacteria to another bacteria ... its DNA directly from mother cell. (d) Bacteria obtained DNA from other external source.

Last Answer : (a) Transfer of some genes from one bacteria to another bacteria through virus.

Which statement is correct for bacterial transduction? (a) Transfer of some genes from one bacteria to another bacteria through virus. (b) Transfer of genes from one bacteria to another bacteria by conjugation. (c) Bacteria obtained its DNA directly from mother cell. (d) Bacteria obtained DNA from other external source.

Description : Which statement is correct for bacterial transduction? (a) Transfer of some genes from one bacteria to another bacteria through virus. (b) Transfer of genes from one bacteria to another bacteria ... its DNA directly from mother cell. (d) Bacteria obtained DNA from other external source.

Last Answer : (a) Transfer of some genes from one bacteria to another bacteria through virus

Which of the following transport bacterial DNA to other bacteria via bacteriophages? A- ConjugationB- Transduction C- Transformation D- Translation

Description : Which of the following transport bacterial DNA to other bacteria via bacteriophages? A- Conjugation B- Transduction C- Transformation D- Translation

Last Answer : Transduction

The linking of antibiotic resistance gene with the plasmid vector became possible with (a) DNA polymerase (b) exonucleases (c) DNA ligase (d) endonucleases.

Description : The linking of antibiotic resistance gene with the plasmid vector became possible with (a) DNA polymerase (b) exonucleases (c) DNA ligase (d) endonucleases.

Last Answer : (c) DNA ligase

The cutting of DNA at specific locations became possible with the discovery of (a) selectable markers (b) ligases (c) restriction enzymes (d) probes.

Description : The cutting of DNA at specific locations became possible with the discovery of (a) selectable markers (b) ligases (c) restriction enzymes (d) probes.

Last Answer : (c) restriction enzymes

PCR and restriction fragment length polymorphism are the methods for(a) study of enzymes (b) genetic transformation (c) DNA sequencing (d) genetic fingerprinting.

Description : PCR and restriction fragment length polymorphism are the methods for (a) study of enzymes (b) genetic transformation (c) DNA sequencing (d) genetic fingerprinting.

Last Answer : (d) genetic fingerprinting.

Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology? (a) Genetic code is specific. (b) Genetic code is not ambiguous. (c) Genetic code is redundant. (d) Genetic code is nearly universal

Description : Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology? (a) Genetic code is specific. (b) Genetic code is not ambiguous. (c) Genetic code is redundant. (d) Genetic code is nearly universal

Last Answer : (c) Genetic code is redundant.

Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology? (a) Genetic code is specific. (b) Genetic code is not ambiguous. (c) Genetic code is redundant. (d) Genetic code is nearly universal.

Description : Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology? (a) Genetic code is specific. (b) Genetic code is not ambiguous. (c) Genetic code is redundant. (d) Genetic code is nearly universal.

Last Answer : (d) Genetic code is nearly universal

What is viewed through an electron microscope? (1) Electrons and other elementary particles (2) Structure of bacteria and viruses (3) Inside of human stomach (4) Inside of the human eye

Description : What is viewed through an electron microscope? (1) Electrons and other elementary particles (2) Structure of bacteria and viruses (3) Inside of human stomach (4) Inside of the human eye

Last Answer : (2) Structure of bacteria and viruses Explanation: Electron microscopes are used to observe a wide range of biological and inorganic specimens including microorganisms, cells, large molecules, ... microscope because electrons have wavelengths about 100,000 times shorter than visible light photons.

What is viewed through an electron microscope? (1) Electrons and other elementary particles (2) Structure of bacteria and viruses (3) Inside of human stomach (4) Inside of the human eye

Description : What is viewed through an electron microscope? (1) Electrons and other elementary particles (2) Structure of bacteria and viruses (3) Inside of human stomach (4) Inside of the human eye

Last Answer : Structure of bacteria and viruses

Difference between DNA and DNase? -Biology

Description : Difference between DNA and DNase? -Biology

Last Answer : answer:

what is DNase?how is it different from DNA? -Biology

Description : what is DNase?how is it different from DNA? -Biology

Last Answer : answer:

A person who is eating boiled potato, his food contains the component (a) cellulose which is digested by cellulase (b) starch which is digested (c) lactose which is not digested (d) DNA which can be digested by pancreatic DNase.

Description : A person who is eating boiled potato, his food contains the component (a) cellulose which is digested by cellulase (b) starch which is digested (c) lactose which is not digested (d) DNA which can be digested by pancreatic DNase.

Last Answer : (b) starch which is digested

Nucleotide arrangement in DNA can be seen by (a) X-ray crystallography (b) electron microscope (c) ultracentrifuge (d) light microscope

Description : Nucleotide arrangement in DNA can be seen by (a) X-ray crystallography (b) electron microscope (c) ultracentrifuge (d) light microscope

Last Answer : (a) X-ray crystallography

Chimeric DNA (A) Is found in bacteriophages (B) Contains unrelated genes (C) Has no restriction sites (D) Is palindromic

Description : Chimeric DNA (A) Is found in bacteriophages (B) Contains unrelated genes (C) Has no restriction sites (D) Is palindromic

Last Answer : Answer : B

Transfer of genetic information from one bacterium to another in the transduction process is through (a) bacteriophages released from the donor bacterial strain (b) another bacterium having special organ for conjugation (c) physical contact between donor and recipient strains (d) conjugation between opposite strain bacterium.

Description : Transfer of genetic information from one bacterium to another in the transduction process is through (a) bacteriophages released from the donor bacterial strain (b) another bacterium ... physical contact between donor and recipient strains (d) conjugation between opposite strain bacterium.

Last Answer : (a) bacteriophages released from the donor bacterial strain

Transfer of genetic information from one bacterium to another in the transduction process is through (a) bacteriophages released from the donor bacterial strain (b) another bacterium having special organ for conjugation (c) physical contact between donor and recipient strains (d) conjugation between opposite strain bacterium.

Description : Transfer of genetic information from one bacterium to another in the transduction process is through (a) bacteriophages released from the donor bacterial strain (b) another bacterium ... physical contact between donor and recipient strains (d) conjugation between opposite strain bacterium.

Last Answer : (a) bacteriophages released from the donor bacterial strain

Which one of the following is NOT an example of genetic recombination? a. Conjugation b. Binary fission c. Transduction d. Transformation

Description : Which one of the following is NOT an example of genetic recombination? a. Conjugation b. Binary fission c. Transduction d. Transformation

Last Answer : c. Transduction

Which of the following is NOT a mode of genetic exchange within a bacterial population? a) conjugation b) transduction c) transformation d) translation

Description : Which of the following is NOT a mode of genetic exchange within a bacterial population? a) conjugation b) transduction c) transformation d) translation

Last Answer : ANSWER: D -- TRANSLATION

What Genetic engineering can be accomplished in bacteria using?

Description : What Genetic engineering can be accomplished in bacteria using?

Last Answer : Genetic engineering involves the use of recombinant DNA technology, the process by which a DNA sequence is manipulated in vitro, thus creating recombinant DNA molecules that have new combinations of genetic material

Two bacteria found to be very useful in genetic engineering experiments are (a) Nitrobacter and Azotobacter (b) Rhizobium and Diplococcus (c) Nitrosomonas and Klebsiella (d) Escherichia and Agrobacterium.

Description : Two bacteria found to be very useful in genetic engineering experiments are (a) Nitrobacter and Azotobacter (b) Rhizobium and Diplococcus (c) Nitrosomonas and Klebsiella (d) Escherichia and Agrobacterium.

Last Answer : (d) Escherichia and Agrobacterium.

Which one of the following bacteria has found extensive use in genetic engineering work in plants? (a) Clostridium septicum (b) Xanthomonas citri (c) Bacillus coagulens (d) Agrobacterium tumefaciens

Description : Which one of the following bacteria has found extensive use in genetic engineering work in plants? (a) Clostridium septicum (b) Xanthomonas citri (c) Bacillus coagulens (d) Agrobacterium tumefaciens

Last Answer : (d) Agrobacterium tumefaciens

The bacteria generally used for genetic engineering is (a) Agrobacterium (b) Bacillus (c) Pseudomonas (d) Clostridium.

Description : The bacteria generally used for genetic engineering is (a) Agrobacterium (b) Bacillus (c) Pseudomonas (d) Clostridium.

Last Answer : (a) Agrobacterium

Why do scientists use bacteria in genetic engineering?

Description : Why do scientists use bacteria in genetic engineering?

Last Answer : Bacterial cell is very simple and easy to handle for the scientists. It is easy for the scientists to isolate plasmid from a bacterial cell and attach a gene with it. Another reason is its fast rate of reproduction.