Q. According to the phenotypic characters of pneumococcus considered in Griffith’s experiment of transformation, which of the following statements are correct?

i) Presence of slime layer
ii) Presence of capsule
iii) Absence of capsule
iv) Type of adhesion
v) Molecular makeup of capsule

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Q. Which of the following combination is a correct observation for the transformation experiment performed by Griffith?

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Q. Fredrick Griffith’s experiment involving Streptococcus pneumonia lead to the discovery of____________

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Q. Definite results proving DNA to be genetic material was given by __________

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Q. Which of the following statements regarding the mechanism of transformation in Bacillus subtilis is false?

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Q. What were the main criteria taken under consideration for the experiment by Hershey and Chase?

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Q. What combination of radiolabelling is correct in case of Hershey and Chase’s demonstration of DNA as genetic material in T2 bacteriophage?

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Q. Recently, scientists have developed a procedure in which protoplasts of E. coli could be directly infected with the phage DNA. This process is termed as_________

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Q. According to Mendel’s experiments gene carry genetic information from parents to offspring’s. On which plant did he perform his experiments?

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Q. Plasmids are ____________

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Q. What stores the genetic information in DNA?

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Q. DNA always carries the genetic information for all organisms.

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Q. What is the major type of RNA produced in the cell required for translation?

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Q. Which macromolecule is not abundantly found though being of critical importance for biological mechanisms?

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Q. Which of the following is wrongly paired?

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Q. With respect to nucleosides which of the following is paired correctly?

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Q. Which of the following is not a component of the nucleic acid backbone?

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Q. According to Chargaff’s rule the two strands of DNA has ___________

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Q. In one strand of a double stranded DNA the rate of occurrence of A is 3 times C in consecutive 10 bases. So how many G will be there in 100 base pairs of a DNA duplex?[Consider G=T in one strand].

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Q. In a diploid organism with 30,000 bases haploid genome contains 23% A residues. What is the number of G residues in the genome of this organism?

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