DNA replication means (a) DNA → DNA (b) DNA → RNA (c) Autocatalytic function of DNA (d) Heterocatalytic function of DNA

DNA replication means (a) DNA → DNA (b) DNA → RNA (c) Autocatalytic function of DNA (d) Heterocatalytic function of DNA
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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

Reverse transcriptase is capable of synthesising (A) RNA → DNA (B) DNA → RNA (C) RNA → RNA (D) DNA → DNA

Description : Reverse transcriptase is capable of synthesising (A) RNA → DNA (B) DNA → RNA (C) RNA → RNA (D) DNA → DNA

Last Answer : Answer : A

The process of copying genetic information from one strand of DNA in to RNA is termed as (a) translation (b) transcription (c) replication (d) mutation

Description : The process of copying genetic information from one strand of DNA in to RNA is termed as (a) translation (b) transcription (c) replication (d) mutation

Last Answer : Ans:(b)

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

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

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

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

.After a mutation at a genetic locus the character of an organism changes due to change in (a) protein structure (b) DNA replication (c) protein synthesis pattern (d) RNA transcription pattern.

Description : .After a mutation at a genetic locus the character of an organism changes due to change in (a) protein structure (b) DNA replication (c) protein synthesis pattern (d) RNA transcription pattern.

Last Answer : (d) RNA transcription pattern.

After a mutation at a genetic locus the character of an organism changes due to change in (a) protein structure (b) DNA replication (c) protein synthesis pattern (d) RNA transcription pattern.

Description : After a mutation at a genetic locus the character of an organism changes due to change in (a) protein structure (b) DNA replication (c) protein synthesis pattern (d) RNA transcription pattern.

Last Answer : a) protein structure

.Balbiani rings (puffs) are sites of (a) DNA replication (b) RNA and protein synthesis (c) synthesis of polysaccharides (d) synthesis of lipids.

Description : .Balbiani rings (puffs) are sites of (a) DNA replication (b) RNA and protein synthesis (c) synthesis of polysaccharides (d) synthesis of lipids.

Last Answer : (b) RNA and protein synthesis

At a chromosome replication fork, the lagging strand consists of__ That is joined by___. a. RNA sequences; DNA ligase b. Okazaki Fragments; RNA Polymerase c. RNA sequences; ribosomes d. Okazaki fragments; DNA ligase

Description : At a chromosome replication fork, the lagging strand consists of__ That is joined by___. a. RNA sequences; DNA ligase b. Okazaki Fragments; RNA Polymerase c. RNA sequences; ribosomes d. Okazaki fragments; DNA ligase

Last Answer : d. Okazaki fragments; DNA ligase

The enzyme adds complementary bases to the DNA template strand during replication. a. Ligase b. Helicase c. DNA polymerase III d. RNA polymerase

Description : The enzyme adds complementary bases to the DNA template strand during replication. a. Ligase b. Helicase c. DNA polymerase III d. RNA polymerase

Last Answer : d. RNA polymerase

What is autocatalytic function of DNA? -Biology

Description : What is autocatalytic function of DNA? -Biology

Last Answer : answer:

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

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

Last Answer : Answer : A

Function of DNA polymerase during DNA replication. -Biology

Description : Function of DNA polymerase during DNA replication. -Biology

Last Answer : answer:

Tetracyclines interfere with a. Translation. b. Transcription. c. Dna Replication. d. Membrane Function.

Description : Tetracyclines interfere with a. Translation. b. Transcription. c. Dna Replication. d. Membrane Function.

Last Answer : a. Translation.

Multiple checkpoints in the eukaryotic cell cycle ensure that division occurs only after sufficient growth and faithful DNA replication, and only when favorable conditions exist. Of the many proteins involved in cell cycle control, cyclin-dependent kinases (CDKs) are among the most important. How do CDKs function to control the cell cycle?

Description : Multiple checkpoints in the eukaryotic cell cycle ensure that division occurs only after sufficient growth and faithful DNA replication, and only when favorable conditions exist. Of the many proteins involved in ... CDKs) are among the most important. How do CDKs function to control the cell cycle?

Last Answer : CDKs phosphorylate various protein substrates that are required for cell cycle progression. Some of the important substrate proteins that CDKs phosphorylate include condensin proteins, which are essential ... which form a stabilizing network under the nuclear membrane that assembles during mitosis.

Assertion (A) `:` Replication and transcription occur in the nucleus but translation occurs in the cytoplasm. Reason (R ) `:` m-RNA is transferred fro

Description : Assertion (A) `:` Replication and transcription occur in the nucleus but translation occurs in the cytoplasm. Reason (R ) `:` m-RNA is transferred fro

Last Answer : Assertion (A) `:` Replication and transcription occur in the nucleus but translation occurs in the ... D. If both assertion and reason are false.

After formation of replication fork (A) Both the new strands are synthesized discontinuously (B) One strand is synthesized continuously and the other discontinuously (C) Both the new strands are synthesized continuously (D) RNA primer is required only for the synthesis of one new strand

Description : After formation of replication fork (A) Both the new strands are synthesized discontinuously (B) One strand is synthesized continuously and the other discontinuously (C) Both the new strands are synthesized continuously (D) RNA primer is required only for the synthesis of one new strand

Last Answer : Answer : B

Formation of RNA primer: (A) Precedes replication (B) Follows replication (C) Precedes transcription (D) Follows transcription

Description : Formation of RNA primer: (A) Precedes replication (B) Follows replication (C) Precedes transcription (D) Follows transcription

Last Answer : Answer : A

Which one of the following statements is true? a. Plasmids are circular molecules of RNA. b. RNA replicates by a conservative method of replication. c. Deletions or insertions of a nucleotide in a gene will cause a reading frameshift during translation. d. Okazaki fragments are removed from a RNA before translation occurs.

Description : Which one of the following statements is true? a. Plasmids are circular molecules of RNA. b. RNA replicates by a conservative method of replication. c. Deletions or insertions of a ... reading frameshift during translation. d. Okazaki fragments are removed from a RNA before translation occurs.

Last Answer : c. Deletions or insertions of a nucleotide in a gene will cause a reading frameshift during translation.

Rate of an autocatalytic chemical reaction is a function of (A) Temperature only (B) Pressure only (C) Composition only (D) All (A), (B) and (C)

Description : Rate of an autocatalytic chemical reaction is a function of (A) Temperature only (B) Pressure only (C) Composition only (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Transcription means the synthesis of – (1) Lipids (2) Protein (3) DNA (4) RNA

Description : Transcription means the synthesis of – (1) Lipids (2) Protein (3) DNA (4) RNA

Last Answer : (3) DNA Explanation: Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme, RNA polymerase. During transcription, a DNA sequence is read by an RNA polymerase, which produces a complementary, anti-parallel RNA strand.

Transcription means the synthesis of (1) Lipids (2) Protein (3) DNA (4) RNA

Description : Transcription means the synthesis of (1) Lipids (2) Protein (3) DNA (4) RNA

Last Answer : DNA

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

mRNA is synthesised on DNA template in which direction? (a) 5′ → 3′ (b) 3′ → 5′ (c) Both (a) and (b) (d) Any

Description : mRNA is synthesised on DNA template in which direction? (a) 5′ → 3′ (b) 3′ → 5′ (c) Both (a) and (b) (d) Any

Last Answer : a) 5′ → 3′

mRNA is synthesised on DNA template in which direction? (a) 5′ → 3′ (b) 3′ → 5′ (c) Both (a) and (b) (d) Any

Description : mRNA is synthesised on DNA template in which direction? (a) 5′ → 3′ (b) 3′ → 5′ (c) Both (a) and (b) (d) Any

Last Answer : (a) 5′ → 3′

n the DNA molecule, (a) the proportion of adenine in relation to thymine varies with the organism (b) there are two strands which run anti- parallel-one in 5′ → 3′ direction and other in 3′ → 5′ (c) the total amount of purine nucleotides and pyrimidine nucleotides is not always equal (d) there are two strands which run parallel in the 5′ → 3′ direction.

Description : n the DNA molecule, (a) the proportion of adenine in relation to thymine varies with the organism (b) there are two strands which run anti- parallel-one in 5′ → 3′ direction and other in 3′ → ... is not always equal (d) there are two strands which run parallel in the 5′ → 3′ direction.

Last Answer : (b) there are two strands which run anti- parallel-one in 5′ → 3′ direction and other in 3′ → 5′

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

‘Replication of DNA is a significant phenomenon’. How?

Description : ‘Replication of DNA is a significant phenomenon’. How?

Last Answer : Replication of DNA ensures equal distribution of the genetic material to the future daughter cells.

Briefly explain DNA replication.

Description : Briefly explain DNA replication.

Last Answer : DNA replication is the process of producing two identical replicas from one original DNA molecule. The process of replication begins with the breaking of hydrogen bonds between the nitrogenous bases of ... . The assembly of nucleotides on the parent DNA template is brought about by some enzymes.

What is meant by DNA replication?

Description : What is meant by DNA replication?

Last Answer : DNA replication is the process of producing two identical replicas from one original DNA molecule.

What is DNA replication fork? -Biology

Description : What is DNA replication fork? -Biology

Last Answer : answer:

Can there be DNA replication without cell division? -Biology

Description : Can there be DNA replication without cell division? -Biology

Last Answer : Yes, there can be DNA replication without involvement of cell division in a cell and one such condition existential is called as 'Polyteny'. Polyteny basically occurs because of failure of ... observed in Order Diptera of Class Insecta of Phylum Arthropoda (eg- Drosophila Salivary glands).

What are the three types of DNA replication? -Biology

Description : What are the three types of DNA replication? -Biology

Last Answer : answer:

What is the origin of replication in DNA? -Biology

Description : What is the origin of replication in DNA? -Biology

Last Answer : answer:

When does replication of chromosomal DNA occur? -Biology

Description : When does replication of chromosomal DNA occur? -Biology

Last Answer : answer:

What is the role of DNA polymerase in DNA replication? -Biology

Description : What is the role of DNA polymerase in DNA replication? -Biology

Last Answer : answer:

Why is DNA replication called semiconservative? -Biology

Description : Why is DNA replication called semiconservative? -Biology

Last Answer : answer:

Why is DNA replication called semiconservative? -Biology

Description : Why is DNA replication called semiconservative? -Biology

Last Answer : answer:

What is the role of the DNA ligase in DNA replication?

Description : What is the role of the DNA ligase in DNA replication?

Last Answer : It joins Okazaki fragments

Which best describes a difference between transcription and DNA replication?

Description : Which best describes a difference between transcription and DNA replication?

Last Answer : The difference between transcription and DNA replication is that transcription uses uracil.

What is replication or DNA replication ?

Description : What is replication or DNA replication ?

Last Answer : The process by which two identical new DNA molecules are formed from one DNA molecule is called DNA replication. In this method , the hydrogen bonds between the two strands of the DNA molecule ... and separated, and each strand forms a new DNA molecule by creating its own complementary new strand.

Why is DNA replication called a semi-conservative method ?

Description : Why is DNA replication called a semi-conservative method ?

Last Answer : In the DNA replication method , the hydrogen bonds between the two DNA strands are broken off and each strand creates a new strand to complement it. Later an old formula and a new formula ... new DNA molecules are formed by the combination of an old maternal molecule and a newly created molecule.

Which one of the following correctly represents the manner of replication of DNA

Description : Which one of the following correctly represents the manner of replication of DNA

Last Answer : Which one of the following correctly represents the manner of replication of DNA A. B. C. D.

$ The enzymes which joins short pieces DNA in the laggins strand is called ligase. ! Lagging strand and leading strand are formed due to replication f

Description : $ The enzymes which joins short pieces DNA in the laggins strand is called ligase. ! Lagging strand and leading strand are formed due to replication f

Last Answer : $ The enzymes which joins short pieces DNA in the laggins strand is called ligase. ! Lagging strand and ... wrong D. If both As and R are wrong.

$ DNA replication is semiconservative. ! Helicases are the enzymes which can break the hydrogen bonds between the nuclotides of DNA

Description : $ DNA replication is semiconservative. ! Helicases are the enzymes which can break the hydrogen bonds between the nuclotides of DNA

Last Answer : $ DNA replication is semiconservative. ! Helicases are the enzymes which can break the hydrogen bonds between the ... D. If both As and R are wrong.

$ DNA replication in a bacterial cell is bidirectional. ! A chromosomes with primary constriction is called "SAT" chromosomes.

Description : $ DNA replication in a bacterial cell is bidirectional. ! A chromosomes with primary constriction is called "SAT" chromosomes.

Last Answer : $ DNA replication in a bacterial cell is bidirectional. ! A chromosomes with primary constriction is called "SAT ... D. If both As and R are wrong.

$ The regular sequences of a cell cycle is `G_(1),S,G_(2),M` and C ! Replication of DNA occurs during S phase.

Description : $ The regular sequences of a cell cycle is `G_(1),S,G_(2),M` and C ! Replication of DNA occurs during S phase.

Last Answer : $ The regular sequences of a cell cycle is `G_(1),S,G_(2),M` and C ! Replication of DNA occurs during ... , R is wrong D. If both As and R are wrong.