A true-breeding specimen seems to be homozygous, thus, the blue color flowers must exhibit the genotype BB and the yellow ones must have possessed the genotype YY.
In the given case, when one crosses a flower with genotype BB and other with genotype YY, all the offspring will be BY. As in the next generation, all the flowers appear blue, thus, the blue allele must be dominant.
C in carbon
h in hydrogen
o in oxygen
Metaphase
The second stage of mitosis. In this stage the chromosomes line up across the center of the cell and become connected to the spindle fiber at their centromere.
Typically, your graph is going to have population on the y-axis and some ... it will show zero growth, which will result in a slope of zero: a horizontal line. ... and the area on the graph identified as such will not be a flat line