Q141
Open questionWhich of the following statements is correct about mitochondria?
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Cell Biology
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Q142
Open questionThe cytoplasm of eucaryotic cells contains an extensive network of minute tubules and filaments, appropriately called
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Q143
Open questionWhich one of the following cell organelles is enclosed by a single membrane?
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Q144
Open questionConsider the following processes which are preparatory to cell division during interphase and choose the correct answer:
1. Replication of DNA takes place
2. The centrioles divide, forming a pair of new centrioles
3. Synthesis of energy-rich compounds which provide energy for mitosis
4. Synthesis of proteins which are later found in the spindle
1. Replication of DNA takes place
2. The centrioles divide, forming a pair of new centrioles
3. Synthesis of energy-rich compounds which provide energy for mitosis
4. Synthesis of proteins which are later found in the spindle
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Q145
Open questionMacromolecules can cross the nuclear envelope
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Q146
Open questionIn eukaryotes, the site of synthesis of most of the ribosomal RNA (rRNA) is the
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Q147
Open questionWhich of the following is the correct sequence of the different phases of cell division?
1. Anaphase
2. Telophase
3. Prophase
4. Mataphase
1. Anaphase
2. Telophase
3. Prophase
4. Mataphase
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Q148
Open questionWho among the following first observed mitochondria as granular structures?
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Q149
Open questionMain function of Golgi bodies is
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Q150
Open questionIn the context of organic evolution, the loss of limbs in snakes is explained by the phenomenon of
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Q151
Open questionMatch List-I with List-II and select the correct answer:
| List-I | List-II |
| a. Theory of mutation | 1. Beadle and Tatum |
| b. Theory of evolution | 2. Jacob and Monod |
| c. One gene one enzyme hypothesis | 3. Darwin |
| d. Operon concept | 4. Hugo De Vries |
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Q152
Open questionMaterial of the nucleus is stained by
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Q153
Open questionWho among the following scientists had proposed that the plasma membrane is made up of lipid sandwiched between two continuous layers of protein?
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Q154
Open questionWhich of the following cell organelles play the most significant role in protein synthesis?
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Q155
Open questionThe spindle without centrioles and blepharoplasts, typically found in higher plants is known as
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Q156
Open questionWhich one of the following statements regarding Histone proteins is correct?
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Q157
Open questionWhich of the following characteristics is correct about cell wall of plant cells?
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Q158
Open questionCytology is related to the study of
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Q159
Open questionA mass of heterochromatin at one end of the chromosome represents the so-called
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Q160
Open questionWho propounded the theory of evolution?
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