Created by StemPy LabA diploid organism has chromosomes, and its cells hold 2C of DNA in G1 phase. Match each cell in List-I with its chromosome number and DNA content in List-II. List-I (Cell) A. A body cell in G1 phase B. A body cell in G2 phase C. Each cell of the dyad formed after telophase I D. Each cell formed at the end of meiosis II List-II (Chromosomes and DNA) I. chromosomes and 1C of DNA II. chromosomes and 4C of DNA III. chromosomes and 2C of DNA IV. chromosomes and 2C of DNA
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← Read the following statements about the significance of mitosis.
(i) It brings about the growth of multicellular organisms.
(ii) It restores the nucleo-cytoplasmic ratio that cell growth disturbs.
(iii) It repairs and replaces cells, such as the cells of the upper layer of the epidermis, of the lining of the gut, and blood cells.
(iv) Divisions in the meristems, the apical and the lateral cambium, give continuous growth of plants throughout their life.
(v) It increases the genetic variability in a population from one generation to the next.
(vi) It halves the chromosome number, so that fertilisation can restore the diploid number in the next generation.
How many of the statements above are correct?The figure shows the DNA content of one cell against time, through one cell cycle that ends in mitosis. The organism has 2n = 8. In which segment is the DNA replicated, and how many chromosomes does the cell have early in segment R, in G2 phase? →
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