Biology questions
20584 published questions with worked solutions.
- The double helix model of DNA resembles a twisted ladder in which the rungs of the ladder are
- The pyrimidines of RNA are
- The two strands of a double-helix model of DNA are held together by hydrogen bonds between
- Watson and Crick proposed the model of DNA is
- Fragments of polynucleotide chain formed during replication of DNA are called as
- Nucleotides are present in the nucleoplasm in the form of
- Okazaki fragments are joined in a correct sequence by
- Which is the DNA unwinding protein?
- Which of the following heavy isotopes was used by Meselson and Stahl during their experiment?
- Experimental demonstration of the semi-conservative mode of DNA replication was given by
- Lagging strand is the one, in which
- DNA replication in eukaryotes is
- After the action of helicase and SSBP protein DNA, the each separated DNA strand acts as
- Which enzyme is responsible for splitting the DNA molecule at the origin by formation of an incision?
- After the synthesis of leading and lagging strand, the RNA primer is removed by enzyme
- Origin of replication is
- (theta) replication of DNA is observed in
- In DNA replication, the primer required to synthesize new strand is
- Over a DNA template, initiation of new strand is carried out by
- DNA replication begins at specific sites situated on the molecule. Such sites are called