Indicate the number of chromosomes and the number of DNA molecules in the prophase of the first and second meiotic cell division. What process occurs with chromosomes in the prophase of the first division?
1) in the prophase of the first division, the number of chromosomes and DNA corresponds to the formula 2n4s;
2) in the prophase of the second division, the formula is n2c, since the cell is haploid;
3) in the prophase of the first division, conjugation of the crossing-verses of homologous chromosomes also occurs.
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