Biology Sample Question Paper Sheet - Class Xii, Central Board Of Secondary Education, 2010 Page 29
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3910.
Given below is an incomplete flow chart showing influence of hormones on gametogenesis in males.
Observe the flow chart carefully and fill in the blanks A, B, C, and D
2
11.
Read the sequence of the nucleotides in the given segment of mRNA and the respective amino acid
sequence in the polypeptide chain.
Polypeptide : met-phe-met-proline-valine-serine
(i)
Provide the triplet of bases (codon) for (a) valine (b) proline
(ii)
Write the nucleotide sequence of the DNA strand from which this mRNA was transcribed
(iii)
What does the last codon of this RNA stand for?
2
OR
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