Pre - DNA synthesis phase is :-

Pre - DNA synthesis phase is :-
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Pre - DNA synthesis phase is :- A. `G_(1)-"phase"` B. `G_(2)-"phase"` C. S-phase D. Prophase
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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

In a somatic cell cycle, DNA synthesis takes place in (a) G1 phase (b) prophase of mitosis (c) S-phase (d) G2 phase.

Description : In a somatic cell cycle, DNA synthesis takes place in (a) G1 phase (b) prophase of mitosis (c) S-phase (d) G2 phase.

Last Answer : (c) S-phase

During cell growth, DNA synthesis takes place on (a) S-phase (b) G1-phase (c) G2-phase (d) M phase.

Description : During cell growth, DNA synthesis takes place on (a) S-phase (b) G1-phase (c) G2-phase (d) M phase.

Last Answer : (a) S-phase

Identify the correct statement with regard to G1 phase (Gap 1) of interphase. (a) DNA synthesis or replication takes place. (b) Reorganisation of all cell components takes place. (c) Cell is metabolically active, grows but does not replicate its DNA. (d) Nuclear division takes place.

Description : Identify the correct statement with regard to G1 phase (Gap 1) of interphase. (a) DNA synthesis or replication takes place. (b) Reorganisation of all cell components takes place. (c) Cell is metabolically active, grows but does not replicate its DNA. (d) Nuclear division takes place.

Last Answer : (c) Cell is metabolically active, grows but does not

Nucleotides required for the synthesis of nucleic acids can be obtained from (A) Dietary nucleic acids and nucleotides (B) De novo synthesis (C) Salvage of pre-existing bases and nucleosides (D) De novo synthesis and salvage

Description : Nucleotides required for the synthesis of nucleic acids can be obtained from (A) Dietary nucleic acids and nucleotides (B) De novo synthesis (C) Salvage of pre-existing bases and nucleosides (D) De novo synthesis and salvage

Last Answer : Answer : D

In adipose tissue, glycerol-3-phosphate required for the synthesis of triglycerides comes mainly from (A) Hydrolysis of pre-existing triglycerides (B) Hydrolysis of phospholipids (C) Dihydroxyacetone phosphate formed in glycolysis (D) Free glycerol

Description : In adipose tissue, glycerol-3-phosphate required for the synthesis of triglycerides comes mainly from (A) Hydrolysis of pre-existing triglycerides (B) Hydrolysis of phospholipids (C) Dihydroxyacetone phosphate formed in glycolysis (D) Free glycerol

Last Answer : Answer : C

Farmers in a particular region were concerned that pre-mature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield? (a) Application of iron and magnesium to promote synthesis of chlorophyll (b) Frequent irrigation of the crop (c) Treatment of the plants with cytokinins along with a small dose of nitrogenous fertilizer (d) Removal of all yellow leaves and spraying the remaining green leaves with 2, 4, 5-trichlorophenoxy acetic acid

Description : Farmers in a particular region were concerned that pre-mature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum ... yellow leaves and spraying the remaining green leaves with 2, 4, 5-trichlorophenoxy acetic acid

Last Answer : (a) Application of iron and magnesium to promote synthesis of chlorophyll

$ Rudolf Virchow was the first to propose that new cells arise only from the pre-existing cells. ! Dividing cells have a low content of DNA.

Description : $ Rudolf Virchow was the first to propose that new cells arise only from the pre-existing cells. ! Dividing cells have a low content of DNA.

Last Answer : $ Rudolf Virchow was the first to propose that new cells arise only from the pre-existing cells. ! Dividing ... wrong D. If both As and R are wrong.

What is the name given to the process in which a strand of DNA is used as a template for the manufacture of a strand of pre mRNA?

Description : What is the name given to the process in which a strand of DNA is used as a template for the manufacture of a strand of pre mRNA?

Last Answer : transcription

Translation is the formation of (A) DNA from DNA (B) mRNA from DNA (C) Protein through mRNA (D) mRNA from pre mRNA

Description : Translation is the formation of (A) DNA from DNA (B) mRNA from DNA (C) Protein through mRNA (D) mRNA from pre mRNA

Last Answer : Answer : B

Transcription is the formation of (A) DNA from a parent DNA (B) mRNA from a parent mRNA (C) pre mRNA from DNA (D) protein through mRNA

Description : Transcription is the formation of (A) DNA from a parent DNA (B) mRNA from a parent mRNA (C) pre mRNA from DNA (D) protein through mRNA

Last Answer : Answer : C

Mitochondria and chloroplast are (A) semi-autonomous organelles (B) formed by division of pre-existing organelles and they contain DNA but lack protein synthesising machinery. Which one of the following options is correct? (a) (A) is true but (B) is false. (b) Both (A) and (B) are false. (c) Both (A) and (B) are correct. (d) (B) is true but (A) is false.

Description : Mitochondria and chloroplast are (A) semi-autonomous organelles (B) formed by division of pre-existing organelles and they contain DNA but lack protein synthesising machinery. Which one of the following options is correct? (a) ( ... Both (A) and (B) are correct. (d) (B) is true but (A) is false.

Last Answer : (a) (A) is true but (B) is false.

is/are the phase/s of finite element method a.Pre-processing b.Solution c.Post Processing d.None

Description : is/are the phase/s of finite element method a.Pre-processing b.Solution c.Post Processing d.None

Last Answer : c.Post Processing

)Which phase of the Acquisition Process Cycle does source qualifications reside? 1. Pre-Award 2. Award 3. Post Award 4. Origination

Description : )Which phase of the Acquisition Process Cycle does source qualifications reside? 1. Pre-Award  2. Award  3. Post Award  4. Origination

Last Answer : 2. Award

What is the role of DNA in protein synthesis?

Description : What is the role of DNA in protein synthesis?

Last Answer : A: DNA contains the genetic code that is used to produce proteins through the process of transcription and translation.

At what stage of cell cycle DNA synthesis takes place? -Biology

Description : At what stage of cell cycle DNA synthesis takes place? -Biology

Last Answer : answer:

Who got noble prize for artificial synthesis of DNA? -Do You Know?

Description : Who got noble prize for artificial synthesis of DNA? -Do You Know?

Last Answer : answer:

DNA acts as a templete for synthesis of :-

Description : DNA acts as a templete for synthesis of :-

Last Answer : DNA acts as a templete for synthesis of :- A. DNA B. RNA C. Both DNA and RNA D. Protein

Assertion : Nucleocytoplasmic ratio decreases in cleavage . Reason : During cleavage , cytoplasmic synthesis is faster than DNA synthesis.

Description : Assertion : Nucleocytoplasmic ratio decreases in cleavage . Reason : During cleavage , cytoplasmic synthesis is faster than DNA synthesis.

Last Answer : Assertion : Nucleocytoplasmic ratio decreases in cleavage . Reason : During cleavage , cytoplasmic synthesis ... If both Assertion & Reason are False.

Why is it more important to check for errors during DNA replication than during protein synthesis?

Description : Why is it more important to check for errors during DNA replication than during protein synthesis?

Last Answer : Because if an error is made during protein synthesis, the resultis at worst one bad protein. If an error is made during DNAreplication, that error will persist for the entire lifespan ofthat cell ... coding segment of DNA, it is possible that every proteinthat locus generates will now be defective.

What are the three types of mistakes that can occur in DNA synthesis?

Description : What are the three types of mistakes that can occur in DNA synthesis?

Last Answer : Feel Free to Answer

In which organism did the reverse transcriptase enzyme which performs DNA synthesis from RNA templates first appear?

Description : In which organism did the reverse transcriptase enzyme which performs DNA synthesis from RNA templates first appear?

Last Answer : Need answer

What is DNA synthesis?

Description : What is DNA synthesis?

Last Answer : Synthesis means creation. Therefore DNA synthesis is thecreation (or copying) of DNA. This occurs before cells divide inorder to create copies of the DNA.

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

Description : 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

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

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

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

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

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

Okazaki pieces are formed during the synthesis of (A) mRNA (B) tRNA (C) rRNA (D) DNA

Description : Okazaki pieces are formed during the synthesis of (A) mRNA (B) tRNA (C) rRNA (D) DNA

Last Answer : Answer : D

Direction of DNA synthesis is (A) 5’ → 3’ (B) 3’ → 5’ (C) Both (A) and (B) (D) None of these

Description : Direction of DNA synthesis is (A) 5’ → 3’ (B) 3’ → 5’ (C) Both (A) and (B) (D) None of these

Last Answer : Answer : A

Synthesis of DNA is also known as (A) Duplication (B) Replication (C) Transcription (D) Translation

Description : Synthesis of DNA is also known as (A) Duplication (B) Replication (C) Transcription (D) Translation

Last Answer : Answer : B

Okazaki fragment is related to (A) DNA synthesis (B) Protein synthesis (C) mRNA formation (D) tRNA formation

Description : Okazaki fragment is related to (A) DNA synthesis (B) Protein synthesis (C) mRNA formation (D) tRNA formation

Last Answer : Answer : A

Tetracylin prevents synthesis of polypeptide by (A) Blocking mRNA formation from DNA (B) Releasing peptides from mRNA-tRNA complex (C) Competing with mRNA for ribosomal binding sites (D) Preventing binding of aminoacyl tRNA

Description : Tetracylin prevents synthesis of polypeptide by (A) Blocking mRNA formation from DNA (B) Releasing peptides from mRNA-tRNA complex (C) Competing with mRNA for ribosomal binding sites (D) Preventing binding of aminoacyl tRNA

Last Answer : Answer : D

The mushroom poison amanitin is an inhibitor of (A) Protein synthesis (B) mRNA synthesis (C) DNA synthesis (D) Adenosine synthesis

Description : The mushroom poison amanitin is an inhibitor of (A) Protein synthesis (B) mRNA synthesis (C) DNA synthesis (D) Adenosine synthesis

Last Answer : Answer : B

After termination of the synthesis of RNA molecule, the core enzymes separate from the DNA template. The core enzymes then recognize a promoter at which the synthesis of a new RNA molecule commences, with the assistance of (A) Rho (ρ) factor (B) δ factor (C) β factor (D) σ factor

Description : After termination of the synthesis of RNA molecule, the core enzymes separate from the DNA template. The core enzymes then recognize a promoter at which the synthesis of a new RNA molecule commences, with the assistance of (A) Rho (ρ) factor (B) δ factor (C) β factor (D) σ factor

Last Answer : Answer : D

Termination of the synthesis of the RNA molecule is signaled by a sequence in the template strand of the DNA molecule, a signal that is recognized by a termination protein, the (A) Rho (ρ) factor (B) σ factor (C) δ factor (D) ε factor

Description : Termination of the synthesis of the RNA molecule is signaled by a sequence in the template strand of the DNA molecule, a signal that is recognized by a termination protein, the (A) Rho (ρ) factor (B) σ factor (C) δ factor (D) ε factor

Last Answer : Answer : A

The smallest unit of DNA capable of coding for the synthesis of a polypeptide is (A) Operon (B) Repressor gene (C) Cistron (D) Replicon

Description : The smallest unit of DNA capable of coding for the synthesis of a polypeptide is (A) Operon (B) Repressor gene (C) Cistron (D) Replicon

Last Answer : Answer : C

Genetic information of nuclear DNA is transmitted to the site of protein synthesis by (A) rRNA (B) mRNA (C) tRNA (D) Polysomes

Description : Genetic information of nuclear DNA is transmitted to the site of protein synthesis by (A) rRNA (B) mRNA (C) tRNA (D) Polysomes

Last Answer : D

The stage of DNA synthesis in mitosis

Description : The stage of DNA synthesis in mitosis

Last Answer : Ans. Interphase

Most hormone receptors are localized on the cell membrane and transduce hormone binding into altered levels of intracellular messengers. A limited number of intracellular receptors do exist. Which of the following statement(s) is/are true concerning intracellular receptors? a. The messengers or hormones must by lipophilic b. These intracellular receptors generally regulate protein synthesis c. The intracellular receptors are located entirely in the nucleus of the cell d. A heat-shock protein serves as an inhibitor protein blocking the DNA-binding domain of the steroid receptor

Description : Most hormone receptors are localized on the cell membrane and transduce hormone binding into altered levels of intracellular messengers. A limited number of intracellular receptors do exist. Which of ... protein serves as an inhibitor protein blocking the DNA-binding domain of the steroid receptor

Last Answer : Answer: a, d Although most hormone and other messenger receptors are extracellular, intracellular receptors have been identified. The hormone messengers involved for these receptors are primarily ... DNA-binding domain of the receptor. Activation involves the dissociation of the inhibitor protein