DNA synthesis in laboratory was first achieved by (A) Watson and crick (B) Khorana (C) A.Kornberg (D) Ochoa

DNA synthesis in laboratory was first achieved by (A) Watson and crick (B) Khorana (C) A.Kornberg (D) Ochoa
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If no primer DNA was given, the following scientist could not have synthesized DNA. (A) Ochoa (B) Okazaki (C) Kornberg (D) Monod

Description : If no primer DNA was given, the following scientist could not have synthesized DNA. (A) Ochoa (B) Okazaki (C) Kornberg (D) Monod

Last Answer : Answer : C

Vitamin theory was proposed by (a) Hepkins and Funk (b) Holly and Khorana (c) Watson and Crick (d) Jensen and Meischer

Description : Vitamin theory was proposed by (a) Hepkins and Funk (b) Holly and Khorana (c) Watson and Crick (d) Jensen and Meischer

Last Answer : (a) Hepkins and Funk

Double helical structure model of the DNA was proposed by (A) Pauling and Corey (B) Peter Mitchell (C) Watson and Crick (D) King and Wooten

Description : Double helical structure model of the DNA was proposed by (A) Pauling and Corey (B) Peter Mitchell (C) Watson and Crick (D) King and Wooten

Last Answer : Answer : C

Which of the following events occurred first? (1) DNA structure of genes was discovered by James D Watson and Francis Crick (2) Yuri Gagarin became the first man in space (3) World's first human heart transplant was performed by Dr. Christian Barnard (4) World's first test tube baby Louise Brown was born in U.K.

Description : Which of the following events occurred first? (1) DNA structure of genes was discovered by James D Watson and Francis Crick (2) Yuri Gagarin became the first man in space (3) World's first human heart ... by Dr. Christian Barnard (4) World's first test tube baby Louise Brown was born in U.K.

Last Answer : (1) DNA structure of genes was discovered by James D Watson and Francis Crick Explanation: Discovery of DNA structure of genes: 25 April, 1953; Yuri Gagarin's feat of becoming the first man in space: ... human heart transplant: 3 December, 1967; and World's first test tube baby: 25 July, 1978.

Which of the following events occurred first ? (1) DNA structure of genes was discovered by James D Watson and Francis Crick (2) Yuri Gagarin became the first man in space (3) World’s first human heart transplant was performed by Dr. Christian Barnard (4) World’s first test tube baby Louise Brown was born in U.K

Description : Which of the following events occurred first ? (1) DNA structure of genes was discovered by James D Watson and Francis Crick (2) Yuri Gagarin became the first man in space (3) World's first human heart ... by Dr. Christian Barnard (4) World's first test tube baby Louise Brown was born in U.K

Last Answer :  DNA structure of genes was discovered by James D Watson and Francis Crick

DNA test was developed by – (1) Dr. Alec Jeffreys (2) Dr. V.K. Kashyap (3) Watson and Crick (4) Gregor Mendel

Description : DNA test was developed by – (1) Dr. Alec Jeffreys (2) Dr. V.K. Kashyap (3) Watson and Crick (4) Gregor Mendel

Last Answer : (3) Watson and Crick Explanation: A genealogical. DNA test looks at a person's genetic code at specific locations. Results give information about genealogy or personal ancestry. James D. Watson and Francis Crick are the two scientists who discovered the structure of DNA in 1953.

Explain the Watson - Crick Model of DNA.

Description : Explain the Watson - Crick Model of DNA.

Last Answer : The structure of DNA molecule resembles a spirally twisted ladder called double helix. It has a pair of polynucleotide chain running anti-parallel (run parallel to each other but with opposite ... alternatively. The nitrogenous bases connect the two opposite strands like the rungs of a ladder.

DNA mRNA C Proposed by Protein A B The figure gives an important concept in the genetic implication of DNA. Fill the blanks A, B and C. (a) A-Maurice Wilkins, B-Transcription, C-Translation (b) A-James Watson, B-Replication, C-Extension (c) A-Erwin Chargaff, B-Translation, C-Replication (d) A-Francis Crick, B-Translation, C-Transcription

Description : DNA mRNA C Proposed by Protein A B The figure gives an important concept in the genetic implication of DNA. Fill the blanks A, B and C. (a) A-Maurice Wilkins, B-Transcription, C-Translation ... c) A-Erwin Chargaff, B-Translation, C-Replication (d) A-Francis Crick, B-Translation, C-Transcription

Last Answer : (d) A-Francis Crick, B-Translation, C-Transcription

The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C. DNA mRNA Proposed by Protein C A B (a) A - Transcription, B -Translation, C - Francis Crick (b) A - Translation, B - Extension, C - Rosalind Franklin (c) A - Transcription, B - Replication, C - James Watson (d) A - Translation, B - Transcription, C - Ervin Chargaff

Description : The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C. DNA mRNA Proposed by Protein C A B (a) A - Transcription, B -Translation, C - Francis Crick (b) ... , B - Replication, C - James Watson (d) A - Translation, B - Transcription, C - Ervin Chargaff

Last Answer : (a) A - Transcription, B -Translation, C - Francis Crick

What is Watson and crick Model of DNA?

Description : What is Watson and crick Model of DNA?

Last Answer : Each DNA molecule is made of thousands of small units called nucleotides. There are four types of nucleotides in DNA. I. Adenine (A) nucleotides II. Thymine (T) nucleotides III. Cytosine (C) ... two stands formed of nucleotides. These two are linked with each other by cross bands like a ladder.

Describe the molecular model of DNA in brief as given by Watson and Crick.

Description : Describe the molecular model of DNA in brief as given by Watson and Crick.  

Last Answer : Ans: 1. DNA is double helical structure resembles a twisted ladder. 2. Each strand shows 5'→ 3' polarity and one strand is antiparallel to the other. Every strand has deoxyribonucleotides. 3 ... consists of 10 base pairs. The angle between the successive nucleotides of the same strand is 36o. 

DNA test was developed by (1) Dr. Alec Jeffreys (2) Dr. V.K. Kashyap (3) Watson and Crick (4) Gregor Mendel

Description : DNA test was developed by (1) Dr. Alec Jeffreys (2) Dr. V.K. Kashyap (3) Watson and Crick (4) Gregor Mendel

Last Answer : Watson and Crick

Reserve transcription was discovered by : (1) Beadle & Tatum (2) Waston & Crick (3) Temin & Baltimore (4) har Govind Khorana

Description : Reserve transcription was discovered by : (1) Beadle & Tatum (2) Waston & Crick (3) Temin & Baltimore (4) har Govind Khorana

Last Answer : Temin & Baltimore

Both α-helix and β-pleated sheet conformation of proteins were proposed by (A) Watson and Crick (B) Pauling and Corey (C) Waugh and King (D) Y.S.Rao

Description : Both α-helix and β-pleated sheet conformation of proteins were proposed by (A) Watson and Crick (B) Pauling and Corey (C) Waugh and King (D) Y.S.Rao

Last Answer : Answer : B

That some human diseases are genetically controlled was first established by (a) Gregor Mendel (b) A E Garrod (c) Watson and Crick (d) William Bateson

Description : That some human diseases are genetically controlled was first established by (a) Gregor Mendel (b) A E Garrod (c) Watson and Crick (d) William Bateson

Last Answer : Ans:(b)

Transposable genetic elements (transposons) a. Were First Discovered By Watson And Crick. b. Are Smaller Than Insertion Sequences. c. Are Examples Of Plasmids. d. May Have Information For Antibiotic Resistance.

Description : Transposable genetic elements (transposons) a. Were First Discovered By Watson And Crick. b. Are Smaller Than Insertion Sequences. c. Are Examples Of Plasmids. d. May Have Information For Antibiotic Resistance.

Last Answer : d. May Have Information For Antibiotic Resistance.

Do you believe that Watson and crick went about their research in an ethical way why or why not?

Description : Do you believe that Watson and crick went about their research in an ethical way why or why not?

Last Answer : Need answer

Fluid mosaic model of cell membrane was put forward by (a) Danielli and Davson (b) Singer and Nicolson (c) Garner and Allard (d) Watson and Crick.

Description : Fluid mosaic model of cell membrane was put forward by (a) Danielli and Davson (b) Singer and Nicolson (c) Garner and Allard (d) Watson and Crick.

Last Answer : (b) Singer and Nicolson

The final proof for DNA as the genetic material came from the experiments of : (1) Hershey and Chase (2) Avery, Mcleod and McCarty (3) Hargobind Khorana (4) Griffith

Description : The final proof for DNA as the genetic material came from the experiments of : (1) Hershey and Chase (2) Avery, Mcleod and McCarty (3) Hargobind Khorana (4) Griffith

Last Answer : (1) Hershey and Chase

Who got Nobel Prize in 1978 for working on enzymes? (A) Koshland (B) Arber and Nathans (C) Nass and Nass (D) H.G. Khorana

Description : Who got Nobel Prize in 1978 for working on enzymes? (A) Koshland (B) Arber and Nathans (C) Nass and Nass (D) H.G. Khorana

Last Answer : Answer : A

How old is Ellen Ochoa now in 2018?

Description : How old is Ellen Ochoa now in 2018?

Last Answer : 59 years old

Who among the following analysed DNA for the first time? (1) Arthur Cornberg (2) Hargobind Khurana (3) M. W. Nirenberg (4) Watson and Krick

Description : Who among the following analysed DNA for the first time? (1) Arthur Cornberg (2) Hargobind Khurana (3) M. W. Nirenberg (4) Watson and Krick

Last Answer : (4) Watson and Krick Explanation: James D Watson and Fracis Crick, the two scientists who discovered the structure of DNA in 1953. Watson and Crick took a crucial conceptual step, suggesting ... pairs interlocked in the middle of the double helix to keep the distance between the chains constant.

Who among the following analysed DNA for the first time ? (1) Arthur Cornberg (2) Hargobind Khurana (3) M. W. Nirenberg (4) Watson and Krick

Description : Who among the following analysed DNA for the first time ? (1) Arthur Cornberg (2) Hargobind Khurana (3) M. W. Nirenberg (4) Watson and Krick

Last Answer :  Watson and Krick

.Khorana first deciphered the triplet codons of (a) serine and isoleucine (b) cysteine and valine (c) tyrosine and tryptophan (d) phenylalanine and methinonine.

Description : .Khorana first deciphered the triplet codons of (a) serine and isoleucine (b) cysteine and valine (c) tyrosine and tryptophan (d) phenylalanine and methinonine.

Last Answer : (a) serine and isoleucine

Khorana first deciphered the triplet codons of (a) serine and isoleucine (b) cysteine and valine (c) tyrosine and tryptophan (d) phenylalanine and methinonine

Description : Khorana first deciphered the triplet codons of (a) serine and isoleucine (b) cysteine and valine (c) tyrosine and tryptophan (d) phenylalanine and methinonine

Last Answer : (b) cysteine and valine

Who proved that DNA is basic genetic material? (a) Griffith (b) Watson (c) Boveri and Sutton (d) Hershey and Chase

Description : Who proved that DNA is basic genetic material? (a) Griffith (b) Watson (c) Boveri and Sutton (d) Hershey and Chase

Last Answer : d) Hershey and Chase

Who proved that DNA is basic genetic material? (a) Griffith (b) Watson (c) Boveri and Sutton (d) Hershey and Chase

Description : Who proved that DNA is basic genetic material? (a) Griffith (b) Watson (c) Boveri and Sutton (d) Hershey and Chase

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By whom was Artificial gene synthesis first done in laboratory? -Do You Know?

Description : By whom was Artificial gene synthesis first done in laboratory? -Do You Know?

Last Answer : answer:

By whom was Artificial gene synthesis first done in laboratory?

Description : By whom was Artificial gene synthesis first done in laboratory?

Last Answer : Khurana

1. The first Indian to cross seven important seas by swimming? 2. By whom was Artificial gene synthesis first done in laboratory? 3. In which schedule is the list of items which may be entrusted to the Panchayats given? 4. Which national Highway route is the longest? 5. Who had started ‘Mitra Mela’ Association?

Description : 1. The first Indian to cross seven important seas by swimming? 2. By whom was Artificial gene synthesis first done in laboratory? 3. In which schedule is the list of items which may be ... 19. Where is Dead sea situated? 20. Who opposed Mahatma Gandhi's association with the Khilafat movement?

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Which of the following Indian Nobel Prize winners is associated with economics? A. V.S. Naipaul B. Amartya Sen C. C.V. Raman D. Hargobind Khorana

Description : Which of the following Indian Nobel Prize winners is associated with economics? A. V.S. Naipaul B. Amartya Sen C. C.V. Raman D. Hargobind Khorana

Last Answer : ANSWER: B

Which of the following Indian Nobel Prize winners is associated with economics? A. V.S. Naipaul B. Amartya Sen C. C.V. Raman D. Hargobind Khorana

Description : Which of the following Indian Nobel Prize winners is associated with economics? A. V.S. Naipaul B. Amartya Sen C. C.V. Raman D. Hargobind Khorana

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Biologist of Indian origin who received the Nobel Prize was (1) Raja Ramanna (2) C.V. Raman (3) Hargovind Khorana (4) Jagadish Chandra Bose

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Conversion achieved in HNO3 synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by (A) Decreasing the pressure (B) Decreasing the temperature (C) Increasing the temperature (D) None of these

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Last Answer : (C) Increasing the temperature

Deficiency of vitamin B12 can be diagonised by (A) Carr-Price reaction (B) Ames assay (C) Watson-Schwartz test (D) Schilling test

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Last Answer : Answer : D

Template-directed DNA synthesis occurs in all the following except (A) The replication fork (B) Polymerase chain reaction (C) Growth of RNA tumor viruses (D) Expression of oncogenes

Description : Template-directed DNA synthesis occurs in all the following except (A) The replication fork (B) Polymerase chain reaction (C) Growth of RNA tumor viruses (D) Expression of oncogenes

Last Answer : Answer : C

The mechanism of synthesis of DNA and RNA are similar to all the following ways except (A) They involve release of pyrophosphate from each nucleotide added (B) They require activated nucleotide precursor and Mg2+ (C) The direction of synthesis is (D) They require a primer

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Last Answer : Answer : D

Amanitin the mushroom poison inhibits (A) Glycoprotein synthesis (B) ATP synthesis (C) DNA synthesis (D) mRNA synthesis

Description : Amanitin the mushroom poison inhibits (A) Glycoprotein synthesis (B) ATP synthesis (C) DNA synthesis (D) mRNA synthesis

Last Answer : Answer : D

Translocase is an enzyme required in the process of (A) DNA replication (B) RNA synthesis (C) Initiation of protein synthesis (D) Elongation of peptides

Description : Translocase is an enzyme required in the process of (A) DNA replication (B) RNA synthesis (C) Initiation of protein synthesis (D) Elongation of peptides

Last Answer : Answer : D

Which one of the following statements correctly describes eukaryotic DNA? (A) They involve release of pyrophosphate from each nucleotide precussor and Mg2+ (B) The direction of synthesis is (C) They require a primer 5’→ 3’ (D) None of these

Description : Which one of the following statements correctly describes eukaryotic DNA? (A) They involve release of pyrophosphate from each nucleotide precussor and Mg2+ (B) The direction of synthesis is (C) They require a primer 5’→ 3’ (D) None of these

Last Answer : Answer : C

Template-directed DNA synthesis occurs in all the following except (A) The replication fork (B) Polymerase chain reaction (C) Growth of RNA tumor viruses (D) Expression of oneogenes

Description : Template-directed DNA synthesis occurs in all the following except (A) The replication fork (B) Polymerase chain reaction (C) Growth of RNA tumor viruses (D) Expression of oneogenes

Last Answer : Answer : C

The mechanism of synthesis of DNA and RNA are similar in all the following ways except (A) They involve release of pyrophosphate from each nucleotide added (B) They require activated nucleotide precursor and Mg2+ (C) The direction of synthesis is 5’ → 3’ (D) They require a primer

Description : The mechanism of synthesis of DNA and RNA are similar in all the following ways except (A) They involve release of pyrophosphate from each nucleotide added (B) They require activated nucleotide precursor and Mg2+ (C) The direction of synthesis is 5’ → 3’ (D) They require a primer

Last Answer : Answer : A

RNA synthesis requires (A) RNA primer (B) RNA template (C) DNA template (D) DNA primer

Description : RNA synthesis requires (A) RNA primer (B) RNA template (C) DNA template (D) DNA primer

Last Answer : Answer : C

In sanger’s method of DNA sequence determination, DNA synthesis is stopped by using (A) 1′, 2′- Dideoxyribonucleoside triphosphates (B) 2′, 3′- Dideoxyribonucleoside triphosphates (C) 2′, 4′- Dideoxyribonucleoside triphosphates (D) 2′, 5′ - Dideoxyribonucleoside triphosphates

Description : In sanger’s method of DNA sequence determination, DNA synthesis is stopped by using (A) 1′, 2′- Dideoxyribonucleoside triphosphates (B) 2′, 3′- Dideoxyribonucleoside triphosphates (C) 2′, 4′- Dideoxyribonucleoside triphosphates (D) 2′, 5′ - Dideoxyribonucleoside triphosphates

Last Answer : Answer : B

Ciprofloxacin inhibits the synthesis of (A) DNA in prokaryotes (B) DNA in prokaryotes and eukaryotes (C) RNA in prokaryotes (D) RNA in prokaryotes and eukaryotes

Description : Ciprofloxacin inhibits the synthesis of (A) DNA in prokaryotes (B) DNA in prokaryotes and eukaryotes (C) RNA in prokaryotes (D) RNA in prokaryotes and eukaryotes

Last Answer : Answer : A

Ciprofloxacin inhibits the synthesis of (A) DNA (B) mRNA (C) tRNA (D) rRNA

Description : Ciprofloxacin inhibits the synthesis of (A) DNA (B) mRNA (C) tRNA (D) rRNA

Last Answer : Answer : A

Novobicin inhibits the synthesis of (A) DNA (B) mRNA (C) tRNA (D) rRNA

Description : Novobicin inhibits the synthesis of (A) DNA (B) mRNA (C) tRNA (D) rRNA

Last Answer : Answer : A

Synthesis of RNA and a DNA template is known as (A) Replication (B) Translation (C) Transcription (D) Mutation

Description : Synthesis of RNA and a DNA template is known as (A) Replication (B) Translation (C) Transcription (D) Mutation

Last Answer : Answer : C

In mammalian cell cycle, synthesis of DNA occurs during (A) S phase (B) G1 phase (C) Mitotic Phase (D) G2 phase

Description : In mammalian cell cycle, synthesis of DNA occurs during (A) S phase (B) G1 phase (C) Mitotic Phase (D) G2 phase

Last Answer : Answer : A

Reverse transcriptase catalyses (A) Synthesis of RNA (B) Breakdown of RNA (C) Synthesis of DNA (D) Breakdown of DNA

Description : Reverse transcriptase catalyses (A) Synthesis of RNA (B) Breakdown of RNA (C) Synthesis of DNA (D) Breakdown of DNA

Last Answer : Answer : C