61.
Sucrose is composed of A
Glucose & Fructose
B
Glucose & Glycogen
C
Two molecules of Glucose
D
Glycogen & Fructose
Answer :
Glucose & Fructose
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62.
Cell hypotehsis was proposed by T Schwan, the cell theory was proposed by A
M. J. Schleiden
B
T. Schwann
C
M. J. Schleiden and T. Schwann
D
C. P. Swanson
Answer :
M. J. Schleiden and T. Schwann
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63.
Histone is a basic protein due to A
Alanine & glycine
B
Methionine & serine
C
Tryptophan & tyrosine
D
Lysine & Arginine
Answer :
Lysine & Arginine
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64.
Khorana & his collegeous synthesized as RNA molecule with repeating sequences of U G N2 - bases. The RNA with "UGU GUG UGU GUG" produced a tetra peptide with alternating sequences of cytein and valine. This prove that codon for cytein & valine is A
UGG, GUU
B
UUG, GGU
C
UGU & GUG
D
GUG & UGU
Answer :
UGU & GUG
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65.
Suppose evolution on earth has occurred in such a way that there are 96 amino acids instead of 20 DNA has 12 different types of bases and DNA synthesis occur in the same way as today. The minimum number of bases per DNA codon would be A
12
B
8
C
2
D
3
Answer :
2
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66.
Sugar which found in haemolymph of insects in called A
Maltose
B
Lactose
C
Trehalose
D
Galactose
Answer :
Trehalose
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67.
Cell wall shows A
complete permeability
B
semipermeability
C
differential permeability
D
impermeability
Answer :
complete permeability
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68.
Feulgen reaction is used to stain A
DNA
B
RNA - polymerase
C
DNA- polymerse
D
A and C both
Answer :
DNA
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69.
The function of non sense codons is A
To release polypeptide chain from t-RNA
B
To form an unspecified amino acid
C
To terminate the message of a gene controlled protein synthesis
D
To convert a sense DNA into non sense DNA
Answer :
To terminate the message of a gene controlled protein synthesis
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70.
In mammals, the mitochondrial ribosomes are A
55s
B
70s
C
80s
D
100s
Answer :
55s
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