Description : CAAT box is present in (A) Prokaryotic promoters 10 bp upstream of transcription start site (B) Prokaryotic promoters 35 bp upstream of transcription start site (C) Eukaryotic promoters 25 bp upstream of transcription start site (D) Eukaryotic promoters 70–80 bp upstream of transcription start site
Last Answer : Answer : D
Description : All of the following statements about bacterial promoters are true except (A) They are smaller than eukaryotic promoters (B) They have two consensus sequences upstream from the transcription star site (C) ... is the site for attachment of RNA polymerase (D) TATA box has a high melting temperature
Description : All of the following statements about eukaryotic promoters are true except (A) They may be located upstream or down stream from the structural gene (B) They have two consensus sequences ( ... (D) Mutations in promoter region can decrease the efficiency of transcription of the structural gene
Last Answer : Answer : A
Description : During transcription holoenzyme RNA polymerase binds to a DNA sequence and the DNA assumes a saddle like structure at that point. What is that sequence called? (a) AAAT box (b) TATA box (c) GGTT box (d) CAAT box
Last Answer : (c) GGTT box
Last Answer : (b) TATA box
Description : Hogness box is present in (A) Prokaryotic promoters (B) Eukaryotic promoters (C) Both (A) and (B) (D) None of these
Last Answer : Answer : B
Description : Pribnow box is present in (A) Prokaryotic promoters (B) Eukaryotic promoters (C) Both (A) and (B) (D) None of these
Description : tRNA genes have (A) Upstream promoters (B) Downstream promoters (C) Intragenic promoters (D) No promoters
Last Answer : Answer : C
Description : A consensus sequence on DNA, called TATA box, is the site for attachment of (A) RNA-dependent DNA polymerase (B) DNA-dependent RNA polymerase (C) DNA-dependent DNA polymerase (D) DNA topoisomerase II
Description : The region of DNA known as TATA BOX is the site for binding of (A) DNA polymerase (B) DNA topoisomerase (C) DNA dependent RNA polymerase (D) Polynucleotide phosphorylase
Description : Which one of the following binds to specific nucleotide sequences that are upstream and most distant from the start site? (A) RNA polymerase (B) Repressor (C) Inducer (D) Restriction
Description : The stretch of codons between AUG and a stop codon is called a) open reading frame b) TATA box c) colinearity d) degenerate
Last Answer : a) open reading frame
Description : Name the steering gear box used in following: (i) Maruti ‘Alto’ (ii) Tata ‘Sumo’ (iii) Ashok Leyland Truck (iv) Road Roller
Last Answer : (i) Maruti ‘Alto’=========Rack and Pinion Type Gear Box. (ii) Tata ‘Sumo’==========Recireulating Ball Type Gear Box. (iii) Ashok Leyland Truck === Worm and Nut Type Gear Box (iv) Road Roller=========== Worm and Roller Type Steering Gear Box
Description : Difference between prokaryotic and eukaryotic transcription -Biology
Last Answer : answer:
Description : How would the transcription of the eukaryotic gene be affected if a replication error changed the nucleotide sequence of the termination signal for that gene?
Last Answer : Extra long proteins are likely to fold improperly and notfunction correctly. The overall health of the individual would bedestroyed.
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
Description : Ali buys a glass, a pencil box and a cup and pays Rs. 21 to the shopkeeper. Rakesh buys a cup, two pencil boxes and a glass and pays Rs. 28 to the shopkeeper. Preeti buys two glasses, a cup and two pencil boxes and pays Rs ... The cost of 10 cups will be (A) Rs. 40 (B) Rs. 60 (C) Rs. 80 (D) Rs. 70
Last Answer : Answer: D
Description : The ribosome binding site A- forms a stem-loop structure in the RNA B- is located upstream of the promoter sequence C- .is located immediately upstream of the start codon D- is more likely to be associated with an operon than with a gene encoding a single protein
Last Answer : .is located immediately upstream of the start codon
Description : The rivosome binding site A- forms a sltem- loop structure in the RNA B- is located upstream of the promoter sequence C- is located immediately upstream of the start codon D- is more likely to be associated with an operon than with a gene encoding a single protein
Last Answer : is located immediately upstream of the start codon
Description : Permanent loss in a Venturimeter is about __________ percent of the pressure drop in the upstream cone. (A) 1 (B) 10 (C) 40 (D) 70
Last Answer : (B) 10
Description : trans-acting factors include (A) Promoters (B) Repressors (C) Enhancers (D) Silencers
Description : Silencer elements (A) Are trans-acting factors (B) Are present between promoters and the structural genes (C) Decrease the expression of some structural genes (D) Encode specific repressor proteins
Description : In the process of transcription in bacterial cells (A) Initiation requires rho protein (B) RNA polymerase incorporates methylated bases in correct sequence (C) Both the sigma unit and core ... RNA polymerase are required for accurate promotor site binding (D) Primase is necessary for initiation
Description : A motorboat can cover 80 km upstream and 120 km downstream together in 26 hours. Also it can cover 100 km upstream and 144 km downstream together in 32 hours. What is the speed of the motorboat in still water? A) 12 km/hr B) 15km/hr C) 8.5km/hr D) 19km/hr
Last Answer : ANSWER :C Explanation: Upstream speed in both cases is 80 and 100. Ratio is 80 : 100 = 8:10 = 4 : 5. So let times in both cases be 4x and 5x Downstream speed in both cases is 120 and 144 resp. Ratio is ... 12 km/hr So speed of boat = 1/2 * (5+12) =17/2km/hr speed of boat = 8.5 km/hr
Description : Which of the following is a nontranslated sequence located between the transcription andthetranslation start site? A-Ending frame B- Leader sequence C- Trailer sequence D-Reading frame
Last Answer : Leader sequence
Description : The region of the Lac operon which must be free from structural gene transcription to occur is (A) The operator locus (B) The promoter site (C) The ‘a’ gene (D) The ‘i’ gene
Description : The termination site for transcription is recognized by (A) α−Subunit of DNA-dependent RNA polymerase (B) β−Subunit of DNA-dependent RNA polymerase (C) Sigma factor (D) Rho factor
Description : The initiation site for transcription is recognized by (A) α−Subunit of DNA-dependent RNA polymerase (B) β−Subunit of DNA-dependent RNA polymerase (C) Sigma factor (D) Rho factor
Description : To commence structural gene transcription the region which should be free on lac operation is (A) Promoter site (B) Operator locus (C) Y gene (D) A gene
Description : Normal range of serum chloride is (A) 24–27 mEq/L (B) 70–80 mEq/L (C) 100–106 mEq/L (D) 120–140 mEq/L
Description : R.Q. of proteins is about (A) 0.70 (B) 0.75 (C) 0.80 (D) 0.85
Description : R.Q. of mixed diet is about (A) 0.70 (B) 0.80 (C) 0.85 (D) 1.0
Description : Biological value of egg proteins is about (A) 70 % (B) 80 % (C) 86 % (D) 94 %
Description : In the total proteins, the percentage of albumin is about (A) 20–40 (B) 30–45 (C) 50–70 (D) 80–90
Description : How many kingdoms contain eukaryotic organisms A. 4 B. 3 C. 2 D. 1?
Last Answer : 4
Description : Thermococcus, Methanococcus and Methano- bacterium exemplify (a) bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria (b) bacteria that ... that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled
Last Answer : (c) archaebacteria that contain protein homologous to eukaryotic core histones
Description : Which of the following is not true for eukaryotic cells? A- Nucleus is bounded by nuclear membrane B- Chromosomes contain histones C- Chloroplasts and mitochondria contains 70S ribosomes D- Gas vacuoles are present
Last Answer : Gas vacuoles are present
Description : Transposons are of particular significance because they a. often contain genes for antibiotic resistance. b. inhibit the effects of overlapping genes. c. come in pairs and often are associated with viruses. d. regulate gene transcription in bacterial cells.
Last Answer : a. often contain genes for antibiotic resistance.
Description : Chromatin has two different regions, euchromatin and heterochromatin. One of these regions is highly condensed and considered an inactive region whereas the other is less condensed so it is more ... for transcription. Which of these regions would contain genes that are being transcribed often?
Last Answer : Euchromatin. Euchromatin is less condensly packaged allowing for easier access by transcription factors and polymerases. Heterochromatin is a region of condensed packaging and considered an inactive region.
Description : A _______ message tells an upstream router to start sending multicast messages for a specific groupthrough aspecific router. A) weed B) graft C) prune D) none of the above
Last Answer : graft
Description : How does one reconcile Mandela's great domestic triumphs with Mandela’s endorsement of violent terrorists and promoters of terrorism?
Last Answer : Given the plight of black South Africans under oppressive white rule you may want to look at it from a different perspective.one mans terrorist is almost always another mans freedom fighter.
Description : Growth promoters are
Last Answer : Ans. Auxins, Gibberellins and Cytokinin
Description : Appointment of a Company Secretary is made by– (A) Promoters (B) Board of Directors (C) Debenture holders (D) Government
Last Answer : Answer: Board of Directors
Description : The first Secretary of the company is appointed by– (A) Shareholders (B) Promoters (C) Government (D) Directors
Last Answer : Answer: Promoters
Description : The first directors of a company are appointed by– (A) Promoters (B) Government (C) Shareholders (D) Company Law Board
Description : What is "narrow money"? (1) The sum of currency in circulation and the demand deposits in banks (2) The sum of MI money and the time deposits (3) The sum of currency in circulation with the ... reserves held by banks (4) The market value of the stocks held by all the holders excluding the promoters
Last Answer : (1) The sum of currency in circulation and the demand deposits in banks Explanation: The four main monetary aggregates of measures of money supply which reflect the state of the monetary sector ... This category of money is considered to be the most readily available for transactions and commerce.
Description : How much shareholding is must for the promoters of insurance companies after their listing? A) 40% B) 50% C) 49% D) 52% E) None of these
Last Answer : B) 50% Explanation: Promoters of insurance companies will be forced to maintain their shareholding at 50 per cent even after listing under the guidelines proposed by the insurance regulator ... Insurance Regulatory and Development Authority of India s (IRDAI) draft guidelines for listed companies.
Description : Which plant hormones are known as growth promoters?
Last Answer : Auxin; Gibberellin; Cytokinin