CBSE Notes 2011-2012 » XII-Biology

Molecular Basis of Inheritance

How many bases will there be in three codons? How many amino acids will this number of bases code fo...

Submitted by mrs_bakshi on Sun, 12/25/2011 - 04:26

Molecular Basis of Inheritance

Short answer question

How many bases will there be in three codons? How many amino acids will this number of bases code for ? [Foreign 2003]

Due to an error during transcription, ATG of DNA formed UAG in mRNA. What would happen to the polype...

Submitted by mrs_bakshi on Sun, 12/25/2011 - 04:26

Molecular Basis of Inheritance

Short answer question

Due to an error during transcription, ATG of DNA formed UAG in mRNA. What would happen to the polypeptide chain during translation by this changed mRNA? [Foreign 2003]

While an mRNA strand is being translated in the ribosome subunit, the triplets in sequence were UAC ...

Submitted by mrs_bakshi on Sun, 12/25/2011 - 04:26

Molecular Basis of Inheritance

Short answer question

While an mRNA strand is being translated in the ribosome subunit, the triplets in sequence were UAC and UAG. One of them codes for tyrosine. What is the significance of the other ? Pick out the codon and specify. [Delhi 2003C]