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Cell Cycle - Questions and Answers

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321. Disjunction is
A. Chromosome aberration involving deletion
B. Modification of gene action by a nonallelic gene
C. Separation of homologous chromosomes at anaphase
D. Incompatibility of genes
Explanation:
322. Best stage to observe shape, size and number of chromosomes is
A. Interphase
B. Metaphase
C. Prophase
D. Telophase
Explanation:
323. Which one occurs once in life cycle?
A. Replication of DNA
B. Replication of chromosomes
C. Meiosis
D. Mitosis
Explanation:
324. Cell Lineage “all cells are derived from pre-existing cells” is the famous generalization of
A. Virchow
B. Schleiden
C. Schwann
D. Lamarck
Explanation:
325. In meiosis, the daughter cells differ from parent cell as well as amongst themselves due to
A. Segregation, independent assortment and crossing over
B. Segregation and crossing over
C. Independent assortment and crossing over
D. Segregation and independent assortment
Explanation:
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