D:-All of the above
Correct Answer:- Option-D
Question75:-Which of the following RNA types is comparatively least stable in bacteria?
A:-mRNA
B:-tRNA
C:-rRNA
D:-All are equally stable
Correct Answer:- Option-A
Question76:-The proteins that redistribute lipids across the membrane belong to the class
A:-Flippases
B:-Floppases
C:-Scramblasses
D:-All of the above
Correct Answer:- Option-D
Question77:-Selenocysteine is coded by
A:-AUG
B:-UAA
C:-UAG
D:-UGA
Correct Answer:- Option-D

Question78:-Predict the order of emergence of the following proteins when a mixture of four is chromatographed on a gel
exclusion column at pH 7

Proteinl; Mr 6,000 pl=5
Protein 2; Mr 23,000 pl=8
Protein3; Mr 55,000 pl=4

Protein4; Mr 10,000 pl =10
A:-Protein 1, Protein 2, Protein 3, Protein 4
B:-Protein 3, Protein 2, Protein 4, Protein 1
C:-Protein 4, Protein 2, Protein 1, Protein 3
D:-Protein 3, Protein 1, Protein 2, Protein 4
Correct Answer:- Option-B
Question79:-Which of the following is anion exchange resin?
A:-CM cellulose
B:-Dowex-50
C:-DEAE cellulose
D:-CM sepharose
Correct Answer:- Option-C
Question80:-How many bands will appear when hemoglobin is electrophoresed on SDS PAGE in reducing condition?
‏ا‎
‎8:-2
‎C:-3
‎D:-4
‎Correct Answer:- Option-B

Question81:-Major emission band during measurement of sodium concentration by flame emission spectroscopy is obtained
at the wave length

A:-589 nm
B:-671 nm
C:-786 nm
D:-852 nm
Correct Answer:- Option-A
Question82:-Identify the commonly used mobile phase in GC-MS.

A:"CH_3CN"*
8:- 1207
C:-He

0:- 0027"

Correct Answer:- Option-C