To harvest honey, the beekeeper will use __ to get rid of the guard bees A. fans

B. smoke

C. tweezers

D. bug spray​

B.) Smoke

Explanation:

I used GoogIe.

b. smoke

Explanation:

in situ hybridization has been widely used for research applications, including clinical cytogenetics, gene mapping, tumor biology and studies of chromosome evolution.

answer; i believe that the correct answer is(d) nondisjunction during meiosis;