861. Nuclear pores are guarded by

A DNA
B Annulus
C Protein
D None of the above
Answer :   Annulus
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862. DNA is present in

A Chromosomes and dictyosomes
B Chloroplst and lysosomes
C Mitochondria and chloroplasts
D Mitochondria and endoplasmic reticulum
Answer :   Mitochondria and chloroplasts
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863. True statement for cellulose molecule

A β - 1' - 4" linkage, unbranched
B β - 1' - 4" linkage, branched
C α - 1' - 4" linkage, branched
D β - 1' - 6" linkage, unbranched
Answer :   β - 1' - 4" linkage, unbranched
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864. Which of the following in a purine

A Prokaryotes
B Guanine
C Thymine
D Uracil
Answer :   Guanine
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865. Which one of the following structures is an organelle within an organelle?

A Ribosome
B Peroxisome
C ER
D Mesosome
Answer :   Ribosome
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866. Genetic information is carried by the long chain molecules which are made up of

A Amino acids
B Nucleotides
C Chromosomes
D Enzymes
Answer :   Nucleotides
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867. Oxysome of mitochondria are concerned with

A Photophosphorylation
B Oxidative phosphrylation
C Photorespiration
D Digestion
Answer :   Oxidative phosphrylation
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868. Which element is found in abundance in eukaryotic cell

A Ca
B P
C Mg
D S
Answer :   Ca
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869. DNA molecules of each chromosome replicates in

A G1 phase
B G2 phase
C S phase
D Mitotic phase
Answer :   S phase
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870. In polypeptide chain of 125 amino acids, if the 25th amino acid is mutated to UAA then

A A polypeptide of 124 amino acid is formed
B A polypeptide of 25 amino acid is formed
C A polypeptide of 24 amino acid is formed
D Any of the above can be possible
Answer :   A polypeptide of 24 amino acid is formed
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