Q161
Open questionEach ribosome consists of two unequal subunits composed of
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Cell Biology
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Q162
Open questionThe fibres extending from the kinetochore (centromere) to the pole of the spindle are called
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Q163
Open questionWhich of the following phases is the longest phase in the meiotic cell division?
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Q164
Open questionThe lipid component of cell membrane consists of
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Q165
Open questionWhich four respiratory chain complexes are parts of the electron transport system (ETS)?
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Q166
Open questionWhich of the following is formed between adjacent cell walls during cell division?
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Q167
Open questionIn prokaryotes, the nuclear material is not bounded by a definite nucleus which is referred to as the
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Q168
Open questionThe non-condensed chromosomes which extend during interphase are called
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Q169
Open questionFluid Mosaic Model' proposed by Singer and Nicholson is mainly concerned with
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Q170
Open questionWhich of the following is a non-membranous organelle?
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Q171
Open questionWhat are those structures that appear as 'beads-on-string' in the chromosomes when viewed under electron microscope?
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Q172
Open questionThe sequence of events by which a cell duplicates its genome, synthesises the other constituents of the cell and eventually divides is termed
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Q173
Open questionA substance which is more than 80% in the cell is
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Q174
Open questionDNA synthesis takes place simultaneously on both strands under the action of the enzyme
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Q175
Open questionArchaeopteryx is
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Q176
Open questionConsider the following statements and choose the correct answer:
1. All living things are composed of cells and their products
2. All cells arise from pre-existing cells
3. All cells are basically alike in chemical composition and metabolic activities
4. The function of an organism as a whole is the outcome of the activities and interactions of the constituent cells
1. All living things are composed of cells and their products
2. All cells arise from pre-existing cells
3. All cells are basically alike in chemical composition and metabolic activities
4. The function of an organism as a whole is the outcome of the activities and interactions of the constituent cells
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Q177
Open questionWho among the following first discovered cell?
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Q178
Open questionChiasmata formed along the lengths of chromosomes are called
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Q179
Open questionConsider the following statements regarding eukaryotic ribosomes and choose the correct answer:
1. Eukaryotic ribosomes are considerably smaller than that of prokaryotes
2. They contain a larger number of proteins
3. They have four molecules of RNA
4. The RNA-protein ratio is near 1 : 1 in eukaryotic ribosomes
1. Eukaryotic ribosomes are considerably smaller than that of prokaryotes
2. They contain a larger number of proteins
3. They have four molecules of RNA
4. The RNA-protein ratio is near 1 : 1 in eukaryotic ribosomes
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Q180
Open questionNucleoside is composed of
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