How does meiosis reduce the number of chromosomes
contained in a cell?
A. The cell divides once without replicating first.
B. Meiosis is a two step process, and the cell
divides twice.
C. Half the chromosomes are destroyed when
the cell divides.

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explanation:

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an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.