678 I think that is the answer
He developed and improved the microscope. He was also the first to discover single-cell organisms that he called animalcules.
Answer:
characteristic of a region or climate that is frost-free with temperatures high enough to support year-round plant growth given sufficient moisture
Explanation:
Purines are two ringed structures
pyrimidines are single ringed structures
Answer:
More than two complete sets of the chromosomes (polyploidy).
Explanation:
Assembly of spindle microtubules assist the chromosomes to arrange in the equator of the cell during metaphase. This is followed by the splitting of centromere and segregation of sister chromatids towards the opposite poles of the cell to ensure equal distribution of chromosomes among the daughter cells.
Any drug that prevents the assembly of the spindle apparatus would not allow the alignment of the chromosomes in the cell's equator. This would prevent the anaphasic segregation of daughter chromosomes to the opposite poles.
Some of the resulting daughter cells are most likely to have more than two sets of chromosomes.
