181.
Plasma membrane is made of
A
proteins and carbohydrates
B
proteins and lipids
C
proteins, lipids and carbohydrates
D
proteins, some nucleic acid and lipids
Answer :
proteins, lipids and carbohydrates
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182.
In which tublin protein is not present
A
Plasma membrane
B
Cilia
C
Flagella
D
Microtubules
Answer :
Plasma membrane
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183.
Which of the following N2 bases are pyrimidines
A
T & C
B
T & A
C
A & C
D
G & T
Answer :
T & C
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184.
What would happen if in a gene encoding a polypeptide of 50 amino acids, 25th codon (UAU) is mutated to UA
A
A polypeptide of 24 amino acids will be formed
B
Two polypeptides of 24 and 25 amino acids will be formed
C
A polypeptide of 49 amino acids will be formed
D
A polypeptide to 25 amino acids will be formed
Answer :
A polypeptide of 24 amino acids will be formed
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185.
Protein in silk thread is
A
Fibroin
B
Keratin
C
Albumin
D
Globulin
Answer :
Fibroin
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186.
Ground substance present inside the mitochondria is called
A
Stroma
B
Matrix
C
Cell sap
D
Cytoplasm
Answer :
Matrix
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187.
DNA polymerase enzyme is required for the synthesis of
A
DNA from DNA
B
DNA from RNA
C
A and B both
D
DNA from nucleosides
Answer :
A and B both
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188.
The part of cell that can be seen with an electron microscope, but can't with a light microscope is/are the
A
Nucleus
B
Golgi bodies
C
Chloroplasts
D
Membrane separating the nucleus from the cytoplasm
Answer :
Membrane separating the nucleus from the cytoplasm
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189.
Lysosomes are not helpful in
A
Osteogenesis
B
Cellular digestion
C
Metamoprphosis in frog
D
Lipogenesis
Answer :
Lipogenesis
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190.
Portion of gene which is transcribed but not translated is
A
Exon
B
Intron
C
Cistron
D
Codon
Answer :
Intron
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