Question

Fill in the blanks in the paragraph below to complete a description of mutants and mutations

In DNA, a Blank 1 mutation can result from the expected sequence CCG being coded instead as CTG. As a result of this change, the resulting m-RNA codon would be GAC instead of Blank 2. Consequently, this will result in an amino acid of Blank 3 instead of Blank 4. Since the amino acids are Blank 5, the mutation can definitely be ruled out as a Blank 6 mutation.

Answer 1

Ans) In DNA, a .....transition substitution.... mutation can result from the expected sequence CCG being coded instead as CTG. As a result of this change, the resulting m-RNA codon would be GAC instead of ...GGC..... Consequently, this will result in an amino acid of .....asparagine... instead of ...glycine... Since the amino acids are ... Changed or different.... the mutation can definitely be ruled out as a... mis sense....  mutation.

Explaination: transition substitution mutation are mutation in which purine base substituted by another purine base or Pyrimidine  base substituted by another pyrimidine. Here pyrimidine Cat second position is replaced by T. Which leads to change in m RNA codon and coded different amino acid resulting mis sense mutation in peptide chain where a amino acid is replaced by different amino acid resulting non functional peptide or peptide with altered function.