#Question id: 15871
#Unit 12. Applied Biology
Various sterilization techniques used in plant tissue culture work;
|
Sterilization technique |
Materials sterilized |
|
A) Dry heat |
i) Media, culture vessels, other glass plasticwarc, contaminated
cultures |
|
B) Autoclaving |
ii)
Heat labile compounds like GA3, ABA, zeatin, urea,·enzymes, etc. |
|
C) Surface sterilization |
iii) Empty glassware, instruments like scalpels, forceps,
needles |
|
D) Liquid (membrane filter of 0.45 μm or smaller pore size) |
iv)
All plant materials to be cultured |
#Question id: 10941
#Unit 7. System Physiology – Animal
In a normal healthy person, which of the following blood components has the shortest life span?
#Question id: 23856
#Unit 13. Methods in Biology
#Question id: 29055
#Unit 10. Ecological Principles
Which of the following statements is correct about biogeochemical cycling?
#Question id: 4236
#Unit 3. Fundamental Processes
In bacteria, there are 61 mRNA codons that specify an amino acid, but only 45 tRNAs. Which of the following statements explains this fact?