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(a) Eubacteria (b) Archaebacteria (c) Cyanobacteria (d) Mycobacteria Answer Answer (b) ArchaebacteriaConstructing an RNAi Library Each clone in the library must have two different promoters flanking the coding region When the clone is transcribed into mRNA, both an antisense and a sense transcript will be produced, and the two strands will come together to form doublestranded RNARetrovirus is an RNA virus They insert a copy of their genome into the DNA of host cells In its doublestranded RNA form, which then reverses transcribed into doublestranded DNA, and then gradually inserted into host cell The correct answer is B

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Double stranded rna is found in mcq

Double stranded rna is found in mcq- Which of the following statements is not true about RNA?Virusspecific dsRNA is also found in cells infected with singlestranded RNA virusesDsRNA has been identified in a variety of apparently normal eucaryotic cells and is associated with the 'killer' character of

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A hydrogen bonds between bases B phosphodiester bonds C covalent bonds between bases D ionic bonds between bases and phosphate groups Your answer Which base is not found in RNA?It was found that only the two former enzymes cut across both strands, RNase T1 cannot cleave double strands RNase III was shown to digest doublestranded RNA by a two step process an initial phase of specific cleavage is followed by random degradation In the first phase the enzyme exhibited a definite preference for some specific base patternD) absence of cell wall 2 The region in prokaryotic cell where double stranded single circular DNA is present is called as a) nucleoplasm b) nuclues c) nucleoid d) protonucleus 3 Ribosomes in prokaryotic cells are

Doublestranded RNA synonyms, Doublestranded RNA pronunciation, Doublestranded RNA translation, English dictionary definition of Doublestranded RNA RNA A adenine U uracil C cytosine G guanine n Multiple Choice Question on Transcription (RNA synthesis) and RNA processing 1) Identify the correct statement regarding the function of ribonucleic acid (RNA) a) messenger RNA serves as a template for synthesis of proteins b) tRNA serves as the adapter molecule for the addition of amino acids and elongation of the peptide chainQ14 In prokaryotic transcription, only one of the strands of a double stranded DNA is involved, why?

If both the strands of DNA form RNA, it will result in the formation of two types of proteins, which will double the amount of proteins formed in the cell from every dsDNA, which will result in increase in complexity of the cellular system (a) it is a double stranded circular DNA (b) it is single stranded DNA (c) it is a double stranded linear DNA (d) no conclusion can be drawn Answer (b) it is single stranded DNA 23) In some viruses, DNA is synthesised by using RNA as template Such a DNA is called NCERT Exemplar (a) ADNA (b) BDNA (c) cDNA (d) rDNA Answer (c) cDNAD doublestranded polymers 25) Some events that take place during the synthesis of a specific protein are listed below a Messenger RNA attaches to a ribosome b DNA serves as a template for RNA production c Transfer RNA bonds to a specific codon d Amino acids are bonded together e RNA moves from the nucleus to the cytoplasm

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Answer (1 of 11) RNA is typically not double stranded, but not because it can't be The bonding that occurs between strands is almost identical to that of DNA, except that RNA involves the slightly less stable UA hydrogen bonds However in biological systems, it is very rare that RNAThe dual role for () RNA strands allows both the synthesis of doublestranded RNA and capsid proteins Most DNA viruses assemble in the nucleus, whereas most RNA viruses develop solely in cytoplasm Some DNA viruses may provide only one or two replicationrelated gene products which function to divert host cell processes to those of viralRIBONUCLEIC ACID(RNA) RNA is also a polymer of nucleotide It is singlestranded and does not form a double helix It is transcribed from a DNA template Types There are three major types of RNA Messenger RNA(mRNA) It consists of singlestranded of variable length Its size depends on the gene and protein for which it taking a message

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In a double stranded RNA form, retroviruses infect a host cell with their genome, and then are reverse transcribed into double stranded DNA, with the DNA then integrated into the home cell genome When integrated into a host genome, a retrovirus is hard to detect and can lay dormant for prolonged periods, having no discernible effect on the host 15 Which of the following may use RNA as its genome?A) diploid b) linear c) singular d) double stranded 17 Which of the following is typically found as part of the prokaryotic genome?

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√100以上 double stranded rna is found in mcq Biology Mcqs Basic Biology McqsMessenger RNA(mRNA) It consists of singlestranded of variable length Its size depends on the gene and protein for which it taking a message For example for a protein molecules having 100 amino acids, the mRNA will have a length of 300 nucleotides In everyDoubleStranded RNA Production of doublestranded RNA (dsRNA) is a part of the coxsackievirus replication cycle It has been shown that dsRNA is able to directly stimulate a dsRNctivated protein kinase (PKR) A major substrate of PKR is the α subunit of the eukaryotic translation initiation factor 2 (eIF2α) The most abundant type of RNA in the cell is 93 Which of the following RNA serves as adaptor molecule during protein synthesis 94 rRNA is synthesised in 95 cDNA is 96 Amino acids are attached to the 97 Ribozymes are 98 RNA is primarily seen in 99 Ribose sugar in RNA is 100 Which of the virus has double stranded RNA as genetic material?

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1) Within the first quarter hour, the researcher sees that the intact RNA is found in the cells After 3 hours, she is not surprised to find that A) Dicer enzyme has reduced it to smaller doublestranded pieces B) the RNA is degraded by 5' and 3' exonucleases C) the doublestranded RNAA Double stranded DNA B Circular double stranded DNA C Linear double stranded DNA D Supercoiled circular double stranded DNA Answer B Explanation Found mostly in prokaryotic cells, plasmids are extra chromosomalauto replicating small circular double stranded DNA which generally carries certain genes for the advantage of bacteria, such as12 The linking number (Lk) of a closedcircular, doublestranded DNA molecule is changed by A) breaking a strand, then rejoining it B) breaking a strand, unwinding or rewinding the DNA, then rejoining it C) breaking all hydrogen bonds in the DNA D) supercoiling without the breaking of any phosphodiester bonds

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B) Strand III is a lagging strand template while strand IV is a leading strand template c) The doublehelix containing strands I and III must be denatured in order for replication to continue d) The doublehelix containing strands II and IV will formDouble stranded RNA, also known as dsRNA, usually shows up in viruses and is somewhat unusual In viruses, it is a unique characteristic, and only a small number of viral families exhibit this trait RNA hybridization happens when one RNA strand combines, or hybridizes, with either another RNA strand or a deoxyribonucleic acid (DNA) strand Molecular Basis of Inheritance Class 12 Biology MCQs Pdf 1 The DNA site where DNAdependent RNA polymerase binds for transcription, is called 2 Operon model for regulation of transcription was proposed by 3 Eukaryotic RNA polymerase III catalyses the synthesis of 4

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High molecular weight, fully doublestranded RNA (dsRNA) has been recognized as the genetic material of many plant, animal, fungal, and bacterial viruses (Diplomaviruses);RNA and DNA are nucleic acids, and, along with lipids, proteins and carbohydrates, constitute the four major macromolecules essential for all known forms of life Like DNA, RNA is assembled as a chain of nucleotides, but unlike DNA, RNA is found in nature as a single strand folded onto itself, rather than a paired double strand In contrast, they found abundant doublestranded RNA in cells infected with adenovirus mutants that were defective for viral RNA processing When this occurred,

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B) The coding strand is copied during RNA synthesis C) The two strands of the doublehelical DNA molecule run parallel to each other D) Template strand matches the sequence of the RNA transcript E) The G–C bonds are much more resistant to denaturation than A–Trich regions Q7 Ribonucleic acid (RNA) is a polymer of purine and pyrimidineA) a bacterium b) an archaeon c) a virus d) a eukaryote 16 Which of the following correctly describes the structure of the typical eukaryotic genome?Check the below NCERT MCQ Questions for Class 12 Biology Chapter 6 Molecular Basis of Inheritance with Answers Pdf free download MCQ Questions for Class 12 Biology with Answers were prepared based on the latest exam pattern We have provided Molecular Basis of Inheritance Class 12 Biology MCQs Questions with Answers to help students understand the concept very well

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(1) It controls the synthesis of protein (2) IL is present in the nucleus of the cell (3) It usually does not replicate (4) It has always double stranded αhelix structureMultiple Choice Questions (MCQ) topic quiz answers Which of the following bonds are broken during DNA replication?Viruses, Viroids and Prions MCQ (Multiple Choice Questions and Answers) Question 1 The parasite that is nonliving outside a living cell but becomes living on entering it A) Bacterium B) Bacteriophage C) Plasmodium

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A) 1962 b) 1972 c) 19 d) 1992 When small interfering RNA are used in place of double stranded RNA, gene knockdown takes place (a) Topoisomerise enzymes cut, uncoil and reseal the double stranded DNA (b) Topoisomerise enzymes bind to the origin of replication sites within double stranded DNA (c) Topoisomerise enzymes open up the double stranded DNA at the replication fork (d) Topoisomerise enzymes join the Okazaki fragments together with phosphodietster bondsA adenine B cytosine C thymine D

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Biochemistry – MCQ 46 – Nucleic acid analysis A nucleic acid was analyzed and found to contain 32% adenine, 18% guanine, 17% cytosine and 33% thymine The nucleic acid must be a) Singlestranded RNA b) Singlestranded DNA c) Double—stranded RNA d) Double stranded DNA Correct answer d) Double stranded DNA The most abundant type of RNA in the cell is 93 Which of the following RNA serves as adaptor molecule during protein synthesis 94 rRNA is synthesised in 95 cDNA is 96 Amino acids are attached to the 97 Ribozymes are 98 RNA is primarily seen in 99 Ribose sugar in RNA is 100 Which of the virus has double stranded RNA as genetic (D) Template strand – (II) (Part of DNA to which RNA transcribed) (E) Coding strand – (III) (complementary strand of DNA to RNA) 33 (a) 34 (c) 35 (b) In mRNA of eukaryotes exons appear, but introns do not This is because introns are intervening and noncoding sequences exams are coding and expressed sequences

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CBSE Class 12 Biology Molecular Basis of Inheritance MCQs Set A with answers available in Pdf for free download The MCQ Questions for Class 12 Biology with answers have been prepared as per the latest syllabus, NCERT books and examination pattern suggested in Standard 12 by CBSE, NCERT and KVS Multiple Choice Questions are an important part of exams for Grade 12 Biology The following Molecular Basis of Inheritance Class 12 Biology MCQ Questions has been designed based on the latest syllabus and examination pattern for Class 12 Purines found both in DNA and RNA are (a) cytosine and thymine (b) adenine and thymine (c) adenine and guanine double stranded (c) triple stranded (d) four stranded Answer A These online MCQs Quiz tests on "Double Stranded DNA Antibody" contain basic interview quiz questions and answers, including a complete course of Zoology in a different post on Zoologymcqscom, preferably for the preparation of Jobs interviews and other competitive exams including overseas students

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MCQs on Gene Expression – Regulation and Silencing Gene Expression – Regulation and Silencing 1 Question When was it first discovered that RNA molecules are capable of catalyzing chemical reactions?Polymerase Chain Reaction MCQs Here you will find MCQ Questions related to "Polymerase chain reaction" in Molecular Biology These Polymerase chain reaction MCQ Questions Will help you to improve your Molecular Biology knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations DNA is double stranded molecule and it is present on the chromosome The chromosome number is different for different individual The structure of Deoxyribonucleic acid is discovered by James Watson and Francis Crick Following MCQs will help more to understand DNA (Deoxyribonucleic acid)

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RNA interference (RNAi) is a genetic regulatory system that functions to silence the activity of specific genes RNAi occurs naturally, through the production of nuclearencoded premicroRNA (premiRNA), and can be induced experimentally, using short segments of synthetic doublestranded RNA (dsRNA) (c) rRNA – RNA found in ribosomes (d) ATP – The energycarrying compound in the cell Answer A 22 The net electric charge on DNA and histones is_____ (a) both positive (b) both negative (c) negative and positive, respectively (d) zero Answer C 23 If a double stranded DNA has % of cytosine, what will be the percentage of adenine in Understand the concept clearly by consistently practicing the Multiple Choice Questions and score well in your exams MCQ Questions on Biological Classification 1 Which of the following organisms can be found in extreme saline conditions?

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Explanation The discovery that simply introducing a double stranded RNA into a cell can repress the gene containing sequencings identical to that dsRNA This phenomenon was first reported in 1998 found by the experiment in the worm C elegans

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