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Substitution of a purine by a purine, of a pyrimidine by a pyrimidine, and of a base-pair by another base-pair which retains the original orientation of the purines and pyrimidines belongs to the class known as
Consider the following statements about Antisense RNA 1. Antisense RNA is a single stranded RNA. 2. Antisense RNA is not related to RNA interference. Which of the above statements is/are correct?
Consider the following statements.
1. The smallest RNA is t RNA.
2. The most abundant RNA of cell is r RNA.
3. DNA can be formed over RNA through reverse transcriptase.
Which of the statements given above are false?
Consider the following statements : 1. Micro RNA (miRNA) is an exogenous double-stranded RNA uptaken by cells, while small interfering RNA (siRNA) is an endogenous single-stranded RNA. 2. miRNA mainly serves as a drug target, therapeutic agent and biomarker tool while siRNA mainly serves as a therapeutic agent. Which of the following statements given above is/are correct?
Which of the following statements is/are correct about COVID-19? 1. It is an RNA virus with ribonucleic acid (RNA) as its genetic material leading to mutations. 2. RNA viruses are single-stranded. 3. RNA replication takes place in the cytoplasm.
Consider the following statements about the genetic materials DNA and RNA: DNA chemically is less reactive and structurally more stable as compared to RNA. DNA is better for the transmission of genetic information as compared to RNA. Both DNA and RNA can mutate. Which of the statements given above are correct?
Name the pyrimidine base which is found in RNA but not in DNA?
জীবকোষে RNA হচ্ছে- i. (m RNA) ii. (n RNA) iii. (t RNA) নিচের কোনটি সঠিক?
For transistor action (a) Base, emitter, and collector regions should have similar size and doping concentrations. (b) The base region must be very thin and lightly doped. (c) The emitter-base junction is forward biased and the base-collector junction is reverse biased. (d) Both the emitter-base junction as well as the base-collector junction are forward biased. Which one of the following pairs of statements is correct? 
interface Base{ boolean m1 (); byte m2(short s);}

which two code fragments will compile?
1. interface Base2 implements Base {}2. abstract class Class2 extends Base { public boolean m1(){ return true; }}3. abstract class Class2 implements Base {}4. abstract class Class2 implements Base { public boolean m1(){ return (7 > 4); }}5. abstract class Class2 implements Base { protected boolean m1(){ return (5 > 7) }}