Ahorse has 64 chromosomes and a donkey has 62, using your knowledge of meiosis explain why a cross between these animals produces a sterile mule

Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2