Vitamin B12 contains metal [Bihar MEE 1997; RPET 1999; Pb. PMT 1999; AFMC 2002; CBSE PMT 2003; CPMT 2003; MP PMT 2003]
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Which purine & pyrimidine bases are paired together by H bonds in DNA?
When adding the next monomer to a growing DNA strand, the monomer is added to the
The base pairs of DNA are correctly shown as
The cell membranes are mainly composed of [CBSE PMT 2005]
Information from X-ray crystallographic data collected by was used by Watson and Crick in their development of the model of DNA.
Refer to the given figure. Formation of structures A and B could be due to