12
Question
Match column I with their correct match in column II.
The correct match is
The correct match is
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Solution
RNA stands for ribonucleic acid.
It is a polynucleotide chain made of many 5-C compound ribose sugars, phosphates and nitrogenous bases (purines and pyrimidines).
There are different types and forms of RNA like rRNA, mRNA, tRNA etc.
RNA is formed from DNA as a result of transcription.
mRNA has the information coded in the form of codons for the formation of a particular type of polypeptide.
Ribosomal RNAs (rRNA) are the constituents of ribosomes.
Meselson & Stahl gave experimental proof for semiconservative mode of DNA replication. They grew E.coli for many generations in a medium having a heavy isotope of nitrogen till the bacterial DNA became completely labeled with heavy isotope. It was then shifted to a medium containing normal nitrogen. After every 20 minutes of their division, samples were taken to test for heavy isotopes of nitrogen by density gradient centrifugation. This gave proof that one strand of daughter double helix DNA gets derived from the parent while the other strand is formed anew. This is called as semiconservative mode of replication.
Griffith gave the transforming principle of bacteria by infecting the mice with virulent and non-virulent strains of bacteria Streptococcus pneumoniae.
The correct match is tabulated below.
It is a polynucleotide chain made of many 5-C compound ribose sugars, phosphates and nitrogenous bases (purines and pyrimidines).
There are different types and forms of RNA like rRNA, mRNA, tRNA etc.
RNA is formed from DNA as a result of transcription.
mRNA has the information coded in the form of codons for the formation of a particular type of polypeptide.
Ribosomal RNAs (rRNA) are the constituents of ribosomes.
Meselson & Stahl gave experimental proof for semiconservative mode of DNA replication. They grew E.coli for many generations in a medium having a heavy isotope of nitrogen till the bacterial DNA became completely labeled with heavy isotope. It was then shifted to a medium containing normal nitrogen. After every 20 minutes of their division, samples were taken to test for heavy isotopes of nitrogen by density gradient centrifugation. This gave proof that one strand of daughter double helix DNA gets derived from the parent while the other strand is formed anew. This is called as semiconservative mode of replication.
Griffith gave the transforming principle of bacteria by infecting the mice with virulent and non-virulent strains of bacteria Streptococcus pneumoniae.
The correct match is tabulated below.
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