Read the following statement with respect to the structure of DNA, and state true (T) or false (F).
A. It is made up of two polynucleotide chains that have antiparallel polarity.
B. The two chains are coiled in a right-handed fashion.
C. A phosphate group is linked to 5'–OH of the same nucleoside by glycoside linkage for the formation of sugar-phosphate backbone.
D. All four deoxyribonucleotides are always equally present in both strands.
B. The two chains are coiled in a right-handed fashion.
C. A phosphate group is linked to 5'–OH of the same nucleoside by glycoside linkage for the formation of sugar-phosphate backbone.
D. All four deoxyribonucleotides are always equally present in both strands.
Important Questions on Molecular Basis of Inheritance
A DNA double helix is long. The number of nucleotides in this DNA is:
Splicing is one of the important steps of post–transcriptional modification of __A__, which occurs in __B__.
(I) Transcribed hn-RNA and m-RNA of gene are similar in size
(II) The end of t-RNA acts as amino acid binding site
(III) f-met-t-RNA binds on to the 'P' site in ribosome
(IV)The protein factor called RF helps in recognising the termination codon
How many amino acids will be produced by the given mRNA sequence if the 16th base is substituted by uracil?
5' A U G C G C A A A C C C U A G C G A 3'
In eukaryotes, the first level of regulation of gene expressions is
