What type of RNA makes up the ribosomes that manufacture polypeptides?

What type of RNA makes up the ribosomes that manufacture polypeptides?
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The role of molecular chaperones is to A-facilitate binding of ribosomes to mRNA B-degrade newly synthesized polypeptides that contain inaccurate sequences C-.facilitate binding of RNA polymerase to DNA D-aid a newly synthesized polypeptide in folding to its proper shape

Description : The role of molecular chaperones is to A-facilitate binding of ribosomes to mRNA B-degrade newly synthesized polypeptides that contain inaccurate sequences C-.facilitate binding of RNA polymerase to DNA D-aid a newly synthesized polypeptide in folding to its proper shape

Last Answer : -aid a newly synthesized polypeptide in folding to its proper shape

The role of molecular chaperones is to A-facilitate binding of ribosomes to mRNA B-degrade newly synthesized polypeptides that contain inaccurate sequences C-.facilitate binding of RNA polymerase to DNA D-aid a newly synthesized polypeptide in folding to its proper shape

Description : The role of molecular chaperones is to A-facilitate binding of ribosomes to mRNA B-degrade newly synthesized polypeptides that contain inaccurate sequences C-.facilitate binding of RNA polymerase to DNA D-aid a newly synthesized polypeptide in folding to its proper shape

Last Answer : aid a newly synthesized polypeptide in folding to its proper shape

Both DNA and RNA are composed of _______ a. polynucleotides b. genes c. polysaccharides d. polypeptides

Description : Both DNA and RNA are composed of _______ a. polynucleotides b. genes c. polysaccharides d. polypeptides

Last Answer : a. polynucleotides

Which of the following parts of the nucleus makes ribosomes and RNA? a. Nuclear envelope b. Nucleolus c. Nucleoplasm d. Chromatin

Description : Which of the following parts of the nucleus makes ribosomes and RNA? a. Nuclear envelope b. Nucleolus c. Nucleoplasm d. Chromatin

Last Answer : b. Nucleolus

Ribozymes are (A) Enzymes present in ribosomes (B) Enzymes which combine the ribosomal subunits (C) Enzymes which dissociate (D) Enzymes made up of RNA

Description : Ribozymes are (A) Enzymes present in ribosomes (B) Enzymes which combine the ribosomal subunits (C) Enzymes which dissociate (D) Enzymes made up of RNA

Last Answer : Answer : D

Transfer RNA transfers (A) Information from DNA to ribosomes (B) Information from mRNA to cytosol (C) Amino acids from cytosol to ribosomes (D) Proteins from ribosomes to cytosol

Description : Transfer RNA transfers (A) Information from DNA to ribosomes (B) Information from mRNA to cytosol (C) Amino acids from cytosol to ribosomes (D) Proteins from ribosomes to cytosol

Last Answer : Answer : C

The most important mechanism by which tetracycline antibiotics exert antiimicrobial action is (a) They chelate Ca2+ ions and alter permeability of bacterial cell membrane (b) They bind to 30S ribosomes and inhibit bacterial protein synthesis (c) They bind to 50S ribosomes and interfere with translocation of the growing peptide chain in the bacteria (d) They interfere with DNA mediated RNA synthesis in bacteria

Description : The most important mechanism by which tetracycline antibiotics exert antiimicrobial action is (a) They chelate Ca2+ ions and alter permeability of bacterial cell membrane (b) They bind to 30S ribosomes ... peptide chain in the bacteria (d) They interfere with DNA mediated RNA synthesis in bacteria

Last Answer : Ans: B

The mechanism of antibacterial action of tetracycline involves (a) Binding to a component of the 50S ribosomal subunit (b) Inhibition of translocase activity (c) Blockade of binding of aminoacyl – tRNA to bacterial ribosomes (d) Selective inhibition of ribosomal peptidyl transferases (e) Inhibition of DNA–dependent RNA polymerase

Description : The mechanism of antibacterial action of tetracycline involves (a) Binding to a component of the 50S ribosomal subunit (b) Inhibition of translocase activity (c) Blockade of binding of ... (d) Selective inhibition of ribosomal peptidyl transferases (e) Inhibition of DNA-dependent RNA polymerase

Last Answer : Ans: C

A complex of ribosomes attached to a single strand of RNA is known as (a) polypeptide (b) Okazaki fragment (c) polysome (d) polymer.

Description : A complex of ribosomes attached to a single strand of RNA is known as (a) polypeptide (b) Okazaki fragment (c) polysome (d) polymer.

Last Answer : (b) Okazaki fragment

In eukaryotic cell transcription, RNA splicing and RNA capping take place inside the (a) ribosomes (b) nucleus (c) dictyosomes (d) ER

Description : In eukaryotic cell transcription, RNA splicing and RNA capping take place inside the (a) ribosomes (b) nucleus (c) dictyosomes (d) ER

Last Answer : (a) ribosomes

Ribosomal RNA is actively synthesised in (a) lysosomes (b) nucleolus (c) nucleoplasm (d) ribosomes.

Description : Ribosomal RNA is actively synthesised in (a) lysosomes (b) nucleolus (c) nucleoplasm (d) ribosomes.

Last Answer : (a) lysosomes

.A complex of ribosomes attached to a single strand of RNA is known as (a) polypeptide (b) Okazaki fragment (c) polysome (d) polymer

Description : .A complex of ribosomes attached to a single strand of RNA is known as (a) polypeptide (b) Okazaki fragment (c) polysome (d) polymer

Last Answer : (c) polysome

Ribosomal RNA is actively synthesised in (a) lysosomes (b) nucleolus (c) nucleoplasm (d) ribosomes.

Description : Ribosomal RNA is actively synthesised in (a) lysosomes (b) nucleolus (c) nucleoplasm (d) ribosomes.

Last Answer : (b) nucleolus

Nissl’s bodies are mainly composed of (a) proteins and lipids (b) DNA and RNA (c) nucleic acids and SER (d) free ribosomes and RER.

Description : Nissl’s bodies are mainly composed of (a) proteins and lipids (b) DNA and RNA (c) nucleic acids and SER (d) free ribosomes and RER.

Last Answer : (d) free ribosomes and RER.

Which one of the following cellular parts is correctly described? (a) Thylakoids - flattened membranous sacs forming the grana of chloroplasts (b) Centrioles - sites for active RNA synthesis (c) Ribosomes - those on chloroplasts are larger (80S) while those in the cytoplasm are smaller (70S) (d) Lysosomes - optimally active at a pH of about 8.5

Description : Which one of the following cellular parts is correctly described? (a) Thylakoids - flattened membranous sacs forming the grana of chloroplasts (b) Centrioles - sites for active RNA synthesis (c) Ribosomes - ... cytoplasm are smaller (70S) (d) Lysosomes - optimally active at a pH of about 8.5

Last Answer : (a) Thylakoids - flattened membranous sacs forming the grana of chloroplasts

.Viruses possess (a) ribosomes to synthesize protein ((c) either DNA or RNA (d) none of these.b) organelle for its vital mechanism

Description : .Viruses possess (a) ribosomes to synthesize protein (b) organelle for its vital mechanism (c) either DNA or RNA (d) none of these.

Last Answer : (c) either DNA or RNA

Being compartmentalized, bacterial RNA polymerases are localized in the and ribosomes are founda. Nucleoid; At The Nucleoid Periphery b. Cytosol; In The Cytosol c. Cytosol; At The Cell Poles d. Nucleoid; In The Nucleoid

Description : Being compartmentalized, bacterial RNA polymerases are localized in the and ribosomes are found a. Nucleoid; At The Nucleoid Periphery b. Cytosol; In The Cytosol c. Cytosol; At The Cell Poles d. Nucleoid; In The Nucleoid

Last Answer : a. Nucleoid; At The Nucleoid Periphery

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 most important mechanism by which tetracycline antibiotics exert antimicrobial action is: A. They chelate Ca2+ ions and alter permeability of bacterial cell membrane B. They bind to 30S ribosomes and inhibit bacterial protein synthesis C. They bind to 50S ribosomes and interfere with translocation of the growing peptide chain in the bacteria D. They interfere with DNA mediated RNA synthesis in bacteria

Description : The most important mechanism by which tetracycline antibiotics exert antimicrobial action is: A. They chelate Ca2+ ions and alter permeability of bacterial cell membrane B. They bind to 30S ribosomes ... peptide chain in the bacteria D. They interfere with DNA mediated RNA synthesis in bacteria

Last Answer : B. They bind to 30S ribosomes and inhibit bacterial protein synthesis

Nissl bodies are mainly composed of (1) Proteins and lipids (2) DNA and RNA (3) Nucleic acids and SER (4) Free ribosomes and RER

Description : Nissl bodies are mainly composed of (1) Proteins and lipids (2) DNA and RNA (3) Nucleic acids and SER (4) Free ribosomes and RER

Last Answer : (4) Free ribosomes and RER

Ribosomes are chemically composed of (A) Protein (B) Only DNA (C) RNA (D) Both A + C

Description : Ribosomes are chemically composed of (A) Protein (B) Only DNA (C) RNA (D) Both A + C

Last Answer : (D) Both A + C

Cytokines are low-molecular-weight polypeptides exerting a wide variety of biologic effects at both local and systemic levels. Which of the following statement(s) is/are true concerning the production and actions of cytokines? a. Cytokines are produced solely by macrophages b. Cytokines act only on other cells within the same local environment c. Cytokines may have both protective and deleterious effects on the host d. Each specific cytokine is produced by a single cell type

Description : Cytokines are low-molecular-weight polypeptides exerting a wide variety of biologic effects at both local and systemic levels. Which of the following statement(s) is/are true concerning the production and ... effects on the host d. Each specific cytokine is produced by a single cell type

Last Answer : Answer: c Macrophages, endothelial cells, lymphocytes, and other cells secrete a large number of different compounds, termed cytokines, that are most probably evolved for the purpose of ... host defenses, exerting both salutatory and deleterious effects on the host, has become increasingly evident

Why are proteins called polypeptides? -Biology

Description : Why are proteins called polypeptides? -Biology

Last Answer : answer:

A mRNA of eukaryotes can code for (A) Only one polypeptide (B) Two polypeptides (C) Three polypeptides (D) Five polypeptides

Description : A mRNA of eukaryotes can code for (A) Only one polypeptide (B) Two polypeptides (C) Three polypeptides (D) Five polypeptides

Last Answer : Answer : A

Proteins produce polypeptides from proteins by (A) Oxidizing (B) Reducing (C) Hydrolyzing (D) None of these

Description : Proteins produce polypeptides from proteins by (A) Oxidizing (B) Reducing (C) Hydrolyzing (D) None of these

Last Answer : Answer : C

Polymers of more than 100 amino acids are termed (A) Proteins (B) Polypeptides (C) Both (A) and (B) (D) None of these

Description : Polymers of more than 100 amino acids are termed (A) Proteins (B) Polypeptides (C) Both (A) and (B) (D) None of these

Last Answer : Answer : A

Pepsin acts on denatured proteins to produce (A) Proteoses and peptones (B) Polypeptides (C) Peptides (D) Dipeptides

Description : Pepsin acts on denatured proteins to produce (A) Proteoses and peptones (B) Polypeptides (C) Peptides (D) Dipeptides

Last Answer : Answer : A

The major constituents in agar are a. Fats b. Aminoacids c. Polysaccharides d. Polypeptides

Description : The major constituents in agar are a. Fats b. Aminoacids c. Polysaccharides d. Polypeptides

Last Answer : Ans: C

The two polypeptides of human insulin are linked together by (a) covalent bond (b) disulphide bridges (c) hydrogen bonds (d) phosphodiester bond.

Description : The two polypeptides of human insulin are linked together by (a) covalent bond (b) disulphide bridges (c) hydrogen bonds (d) phosphodiester bond.

Last Answer : (b) disulphide bridges

What would happen if in a gene encoding a polypeptide of 50 amino acids, 25th codon (UAU) is mutated to UAA? (a) A polypeptide of 24 amino acids will be formed. (b) Two polypeptides of 24 and 25 amino acids will be formed. (c) A polypeptide of 49 amino acids will be formed. (d) A polypeptide of 25 amino acids will be formed.

Description : What would happen if in a gene encoding a polypeptide of 50 amino acids, 25th codon (UAU) is mutated to UAA? (a) A polypeptide of 24 amino acids will be formed. (b) Two polypeptides of 24 and ... ) A polypeptide of 49 amino acids will be formed. (d) A polypeptide of 25 amino acids will be formed.

Last Answer : (b) Two polypeptides of 24 and 25 amino acids will be formed.

.What would happen if in a gene encoding a polypeptide of 50 amino acids, 25th codon (UAU) is mutated to UAA? (a) A polypeptide of 24 amino acids will be formed. (b) Two polypeptides of 24 and 25 amino acids will be formed. (c) A polypeptide of 49 amino acids will be formed. (d) A polypeptide of 25 amino acids will be formed.

Description : .What would happen if in a gene encoding a polypeptide of 50 amino acids, 25th codon (UAU) is mutated to UAA? (a) A polypeptide of 24 amino acids will be formed. (b) Two polypeptides of 24 and ... ) A polypeptide of 49 amino acids will be formed. (d) A polypeptide of 25 amino acids will be formed.

Last Answer : (a) A polypeptide of 24 amino acids will be formed.

The enzyme enterokinase helps in conversion of (a) protein into polypeptides (b) trypsinogen into trypsin (c) caseinogen into casein (d) pepsinogen into pepsin.

Description : The enzyme enterokinase helps in conversion of (a) protein into polypeptides (b) trypsinogen into trypsin (c) caseinogen into casein (d) pepsinogen into pepsin.

Last Answer : (b) trypsinogen into trypsin

Which of the following structures can polypeptides have? (a) primary structure (b) secondary structure (c) tertiary structure (d) all of the these

Description : Which of the following structures can polypeptides have? (a) primary structure (b) secondary structure (c) tertiary structure (d) all of the these

Last Answer : all of the these

Which statement is NOT true about non-steroid (peptide) hormones? A) They are derived from peptides, proteins, polypeptides, and derivatives of amino acids. B) They bind to receptors on the cell surface. C) They form cyclic AMP inside the cell. D) They create an enzyme cascade effect. E) They enter the cell in order to have an effect.

Description : Which statement is NOT true about non-steroid (peptide) hormones? A) They are derived from peptides, proteins, polypeptides, and derivatives of amino acids. B) They bind to receptors on the cell surface. ... They create an enzyme cascade effect. E) They enter the cell in order to have an effect.

Last Answer : E) They enter the cell in order to have an effect.

Which of the following converts peptones, proteoses and polypeptides into amino acids : (a) Amylase (b) Trypsin (c) Lipase (d) Rennin

Description : Which of the following converts peptones, proteoses and polypeptides into amino acids : (a) Amylase (b) Trypsin (c) Lipase (d) Rennin

Last Answer : (b) Trypsin

Pick out the wrong statement. (A) Fibrillation of fibre during paper manufacture is done to develop the strength in paper (B) Alkali consumption in digestion/cooking of bamboo is measured in terms of permanganate number (C) Bagasse fibre contains both lignin & cellulose (D) Presence of sodium sulphate in pulp makes the pulp bleachability poor

Description : Pick out the wrong statement. (A) Fibrillation of fibre during paper manufacture is done to develop the strength in paper (B) Alkali consumption in digestion/cooking of bamboo is measured in terms ... both lignin & cellulose (D) Presence of sodium sulphate in pulp makes the pulp bleachability poor

Last Answer : (D) Presence of sodium sulphate in pulp makes the pulp bleachability poor

As per section 2(1)(j) of Consumer Protection Act 1986, 'manufacturer' means a person who (i) makes or manufactures any goods or part thereof (ii) does not make or manufacture any goods but assembles parts thereof made or manufactured by others (iii) puts or causes to be put his own mark on any goods made or manufactured by any other manufacturer; Codes: A. (i) & (ii) B. (i) & (iii) C. (ii) & (ii) D. (i), (ii) & (iii)

Description : As per section 2(1)(j) of Consumer Protection Act 1986, 'manufacturer' means a person who (i) makes or manufactures any goods or part thereof (ii) does not make or manufacture any goods but assembles parts thereof made or manufactured by ... B. (i) & (iii) C. (ii) & (ii) D. (i), (ii) & (iii)

Last Answer : D. (i), (ii) & (iii)

Nitrogen 1. Is non-essential for the animal bodies 2. In air dilutes oxygen which, otherwise, is very active in the pure form 3. Makes oxygen soluble in blood 4. Is present in DNA and RNA The correct statements are: (a) 1 and 4 only (b) 2 and 4 only (c) 3 and 4 only (d) 1 and 2 only

Description : Nitrogen 1. Is non-essential for the animal bodies 2. In air dilutes oxygen which, otherwise, is very active in the pure form 3. Makes oxygen soluble in blood 4. Is present in DNA and RNA The correct statements are: (a) 1 and 4 only (b) 2 and 4 only (c) 3 and 4 only (d) 1 and 2 only

Last Answer : Ans:(b)

Which one of the following makes use of RNA template to synthesise DNA? (a) DNA polymerase (b) RNA polymerase (c) Reverse transcriptase (d) DNA dependant RNA polymerase

Description : Which one of the following makes use of RNA template to synthesise DNA? (a) DNA polymerase (b) RNA polymerase (c) Reverse transcriptase (d) DNA dependant RNA polymerase

Last Answer : c) Reverse transcriptase

Ribosomes match up the ______ of the mRNA and the ______ of the tRNAs. a. codons; anticodons b. introns; exons c. anticodons; codons d. genes; anticodons

Description : Ribosomes match up the ______ of the mRNA and the ______ of the tRNAs. a. codons; anticodons b. introns; exons c. anticodons; codons d. genes; anticodons

Last Answer : a. codons; anticodons

What is the function of ribosomes?

Description : What is the function of ribosomes?

Last Answer : Ribosomes are responsible for synthesizing proteins in the cell.

What is the function of ribosomes?

Description : What is the function of ribosomes?

Last Answer : A: Ribosomes are cellular structures responsible for synthesizing proteins.

What is the function of the ribosomes?

Description : What is the function of the ribosomes?

Last Answer : A: Ribosomes are cellular organelles responsible for synthesizing proteins.

What is the function of ribosomes?

Description : What is the function of ribosomes?

Last Answer : A: Ribosomes are cellular organelles responsible for protein synthesis.

What is the function of the ribosomes?

Description : What is the function of the ribosomes?

Last Answer : A: Ribosomes are cellular structures that are responsible for protein synthesis, or the process of building proteins from amino acids.

What is the function of the ribosomes?

Description : What is the function of the ribosomes?

Last Answer : A: Ribosomes are responsible for synthesizing proteins by translating the genetic information encoded in mRNA.

What is the function of ribosomes?

Description : What is the function of ribosomes?

Last Answer : A: Ribosomes are responsible for synthesizing proteins, which are essential for cellular processes and functions.

What is the function of ribosomes?

Description : What is the function of ribosomes?

Last Answer : A: Ribosomes are responsible for synthesizing proteins.

Distinguish the ribosomes of prokaryotic cells from that of eukaryotic cells. -Biology

Description : Distinguish the ribosomes of prokaryotic cells from that of eukaryotic cells. -Biology

Last Answer : answer:

What are the subunits of prokaryotic ribosomes? -Biology

Description : What are the subunits of prokaryotic ribosomes? -Biology

Last Answer : answer: