If someone crosses the black cat (BB or Bb) with white cat (bb) and 50 percent of the offspring are black, what is genotype of the black cat ?

this cat is Bb

Explanation:

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this