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Consider the following statements regarding supernumerary chromosomes and choose the correct answer: 1. They are not homologous with any of the normal chromosomes 2. They form synapses among themselves 3. They are generally smaller than normal chromosomes 4. They are found more commonly in plants than in animals
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95% of the cytoplasm of RBCs is____________?
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Consider the following statements regarding the ultrastructure of the nucleolus and choose the correct answer: 1. The matrix or pars amorpha of the nucleolus is heterogeneous 2. The chromatin is Feulgen positive 3. The fibrils, 80 - 100 A in diameter, contain RNA and are probably the precursors of the granules 4. Ribonucleoprotein granules make up the pars granulosa