Taq polymerase is used in the polymerase chain reaction because:
(1) It replicates DNA faster than other enzymes
(2) It is the only enzyme that can replicate DNA invitro
(3) It does not require RNA primer to function
(4) It is thermostable
The hot spots of biodiversity conservation are characterized by:
1. High endemicity and high threat of extinction
2. Low endemicity and high threat of extinction
3. High endemicity and low threat of extinction
4. Low endemicity and low threat of extinction
The electronic configuration of a transition element X in +3 Oxidation state is [Ar]3d5.
The atomic number of X is :
1. 25
2. 26
3. 27
4. 24
Which acid deravative is most reactive towards nucleophilic substitution reaction?
1. CH3COCl
2. (CH3CO)2O
3. CH3COOC2H5
4. CH3CONH2
The binding energy per nucleon in deuterium and helium nuclei are and respectively. When two deuterium nuclei fuse to form a helium nucleus, the energy released in the fusion is
1. 47.12 MeV
2. 34.4 MeV
3. 11.8 MeV
4. 23.6 MeV
Two coils have a mutual inductance of 5 mH. Current changes in the first coil according to the equation I = cos wt, where = 10 A and rad/s. Maximum value of e.m.f. induced in the second coil is
1. 5 volt
2. 2 volt
3. 4 volt
4. volt