Which of the following is true about chloroplast
1. one in chlamydomonas
2. 20-40 in leaf mesophyll cell
3. present in different shapes
4. All of these
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is true about stroma except
(1)contains enzymes for carbohydrates and proteins synthesis
(2)Chlorophyll pigments are present in stroma
(3) contains the most abundant protein of the universe
(4)contains small, dsDNA molecules
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe common feature of mitochondria and plastids
(1) both are double membranous cell organelles
(2)Both contains 70s ribosomes
(3)both have dsDNA
(4)All of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA number of organised flattened membranous sacs are called
(1)thylakoids
(2)starch granules
(3)Quantasomes
(4)None of these
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyChromatin can be stained with
1. Basic dyes
2. neutral dyes
3. acidic dyes
4. Crystal violet
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyChromatin can be observed in
(1)Interphase nucleus
(2)dividing nucleus
(3)Both A and B
(4)Nuclei of any stage
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThrough the nuclear pore the movement of _____and ______takes place
(1)RNA and proteins
(2)DNA and RNA
(3)DNA and proteins
(4)RNA and carbohydrates
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyNucleus is absent in
1. erythrocytes of mammals
2. sieve tube cells of Vascular plants
3. Both A and B
4. Companion cells of vascular bundle
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is true about nucleolus?
(1)membrane less structure
(2)active site for rRNA synthesis
(3)numerous in cells which are involved in protein synthesis
(4)All of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is true about chromosome
1. nucleoprotein
2. 23 pairs in single human diploid cell
3. Contains primary constriction
4. All of these
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology